The alcohol that would be most soluble in water out of the given options is ethanol. Ethanol has a smaller carbon chain and a hydroxyl (-OH) functional group, which makes it highly polar.
This polarity allows ethanol to form hydrogen bonds with water molecules, making it highly soluble in water. On the other hand, 1-butanol, 1-pentanol, 1-hexanol, and 1-heptanol have longer carbon chains and bulkier structures than ethanol, making them less polar and less soluble in water.
So, the alcohol that is most soluble in water out of the given options is ethanol due to its small carbon chain and high polarity, which allows it to form hydrogen bonds with water molecules.
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Draw A Lewis Diagram For The Ether C2H5OC2H5.
The ether C2H5OC2H5 has the following Lewis structure. The valence shell electrons of a molecule are depicted in a highly condensed manner in a Lewis structure.
C
|
H-C-H
|
O-C-H
|
H-C-H
|
H
How does the Barnes structure rule work?Lewis structure, also referred to as electron-dot framework, is indeed a structural formula wherein the dots serve as placeholders for electrons; two dots between bonded ions signify a covalent link. Gilbert Newton Lewis, the man behind its 1916 introduction, gave it its name.
Why is Lewis structure significant? What is it?A molecule's valence shell electrons are shown in a very simple manner via a Lewis structure. It serves as a visual representation of how the electrons surrounding particular molecules' atoms are positioned. For bonds involving two atoms, electrons are displayed as "dots" or as a line.
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what is the device that most famously is used to find the molecular weight of a compound?
The device that is most famously used to find the molecular weight of a compound is a mass spectrometer.
A mass spectrometer is an analytical instrument that is used to measure the mass-to-charge ratio of charged particles. It works by ionizing a sample of the compound, accelerating the ions, and then measuring their masses using a magnetic or an electric field. The resulting mass spectrum can be used to determine the molecular weight of the compound, as well as its elemental composition and isotopic distribution. Mass spectrometry is widely used in chemistry, biochemistry, and other fields to identify and quantify molecules, and it is considered one of the most accurate and precise methods for determining molecular weight.
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Considering the following reaction
Pt²⁺(aq) + 2Br⁻(aq) ⇄ Pt(s) + Br₂(l) K=5.3 × 10³
if the concentration of Pt²⁺(aq) is 2.0 × 10⁻² M and the concentration of Br⁻(aq) is 2.0 × 10⁻² M
which of the following is true?
A. Q > K reactants will form more products as the system reaches equilibrium.
B. Q > K products will form more reactants as the system reaches equilibrium.
C. Q < K reactants will form more products as the system reaches equilibrium.
D. Q < K products will form more reactants as the system reaches equilibrium.
E. Q = K the system is at equilibrium.
B. Q > K products will form more reactants as the system reaches equilibrium.
The reaction quotient (Q) is calculated by multiplying the concentrations of the products raised to the power of their stoichiometric coefficients, divided by the concentrations of the reactants raised to the power of their stoichiometric coefficients.
Q = [Pt(s)][Br₂(l)] / [Pt²⁺(aq)][Br⁻(aq)]²
If the initial concentration of Pt²⁺(aq) is 2.0 × 10⁻² M and the concentration of Br⁻(aq) is also 2.0 × 10⁻² M, then Q = (1)(1) / (2.0 × 10⁻²)^3
Since the equilibrium constant (K) for this reaction is 5.3 × 10³, then Q > K which means that products will form more reactants as the system reaches equilibrium.
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this can release toxic chemicals when heated ( not vegetable oil, and it starts with the letter T)
Natural gas and propane stoves this can release toxic chemicals when heated.
What is toxic chemical ?A toxic chemical is defined as the substance that can be poisonous or cause health effects. For example, ammonia, acid, bleach, chlorine, and carbon monoxide.
Natural gas and propane stoves can release harmful pollutants into the air like carbon monoxide, formaldehyde. Which can be toxic to people and pets. By using a wood stove or fireplace to cook can result in grater levels of indoor air pollution from wood smoke.
Thus, Natural gas and propane stoves this can release toxic chemicals when heated.
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True or false? If the same reaction is carried out twice, once at high pressure and once at low pressure, the reaction at low pressure will have a shorter reaction time.
If the same reaction is carried out twice, once at high pressure and once at low pressure, the reaction at low pressure will have a shorter reaction time is referred to as a false statement.
What is Reaction time?This is referred to as the speed at which a chemical reaction takes place and is also the measure of the change in concentration of the disappearance of reactants or the change in concentration of the products.
Increase in the temperature and pressure will lead to a shorter reaction time while a decrease in the temperature and pressure will lead to a longer reaction time which is therefore why false was chosen as the correct choice.
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Answer: False.
Explanation: At higher pressures, there are more particles per unit volume. This means that they are closer together, so there will be more frequent successful collisions and a faster rate of reaction.
For each of the following balanced chemical equations, calculate how many moles of product(s) would be produced if 0.500 mole of the first reactant were to react completely. You will have 2 different answers for each of these (one for each product).
*Hint: Set up a mole to mole ratio both starting with 0.500 moles
1. CO2g + 4H2g -> CH4g + 2H2Ol
2. C3H8g + 5O2 -> 4H2Ol + 3CO2g
Answer:
Explanation:
Use the reactant as the baseline for the molar ratios of the other reaction components. In the first reaction, setting the CO2 to 1 mole aloows us to assign relative moles to the other reaction components (ratios of that component to CO2).
Multiply those ratios times the reactant number of moles to find the moles of the other components. For example, 0.5 moles of CO2 will react with (0.5)*(4) moles of O2. It will produce (0.5)*(1) mole of V=CH4 and (0.5)*(2) moles of H2O.
1. CO2g + 4H2g -> CH4g + 2H2Ol
Ratio 1 4 1 2
moles
0.5 2 0.5 1
2. C3H8g + 5O2 -> 4H2Ol + 3CO2g
Ratio 1 5 4 3
moles
0.5 2.5 2.0 1.5
carbon tetrachloride CC4 (g) can be synthesized according to the reaction represented above. A chemist runs the reaction
0.310 moles of [tex]Cl_{2}[/tex] are present in the container, according to the reaction. This is the answer to the given question.
What is Carbon tetrachloride?Carbon tetrachloride is a manufactured chemical that does not occur naturally. It is a clear liquid with a sweet smell that can be detected at low levels. It is also called carbon chloride, methane tetrachloride, perchloromethane, tetrachloroethane, or benziform. Carbon tetrachloride molecules have tetrahedral molecular geometries in which the central carbon atom is bonded to four chlorine atoms.
What effects does carbon tetrachloride have on people?The liver and kidneys are harmed by acute exposure to high quantities of carbon tetrachloride in drinking water. Headache, lightheadedness, fatigue, sluggishness, and impaired vision are further signs. Extremely high doses can also result in death, vomiting, or stomach pain.
Determination of number of moles:(0.4) (25) = (0.0821) (n) (120+273)
Moles of [tex]Cl_{2}[/tex],n = 0.310 mol
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The molar mass of o2 is 32. 0 g/mol. What mass, in grams, of o2 must react to form 3. 80 mol of al2o3? 60. 8 grams 81. 1 grams 122 grams 182 grams.
The mass of oxygen that must react is 182 g to form 3.80 mol Al₂O₃.
What are molar mass and mass?The molar mass of the substance is the sum of the atomic masses of the individual constituent atoms of the compound or molecule, whereas the mass of the substance is its weight.
The chemical process is depicted as follows:
4Al+3O₂⇒2Al₂O₃
According to the process, 3 moles of oxygen are needed to create 2 moles of aluminum oxide, hence 3.80 moles of aluminum oxide will require x moles of oxygen.
moles oxygen = 3/2 x 3.80 moles of aluminum oxide
moles oxygen = 5.7 moles
mass oxygen = moles x mass molar
mass oxygen = 5.7 x 32 g/moles= 182.4 g
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Please help, will give brainiest
QUESTION 1.
Element X on Planet Qatar has three known isotopes: X-121 with a relative abundance of 43.2%, X-123 with a relative abundance of 53.1%, and X-129 with a relative abundance of 3.70%. What is the average atomic mass in amu of Element X given this information?
QUESTION 2.
How did Rutherford's experiment change the way scientists had previously viewed atomic structure? How did this pave the way for subsequent changes up to and including the currently accepted quantum mechanical atomic model?
QUESTION 3.
How is percent abundance related to average atomic mass?
Answer 1
The average atomic mass in a.m.u of Element X given this information is 122.358.
Answer 2
Rutherford's experiment change the way scientists had previously viewed atomic structure as it provided insight into atomic structure.
Rutherford's experiment paved the way for subsequent changes up to and including the currently accepted quantum mechanical atomic model as his model of the atom, the structure of the nucleus became more well-defined following the discovery of protons (1919) and neutrons (1932) as the particle constituents of the nucleus.
Answer 3
The percent abundance is related to the number fraction as fi = Pi/100 and used as in the formula written above in order to find average mass
What is atomic structure?Atomic structure refers to the structure of an atom comprising a nucleus (centre) in which the protons (positively charged) and neutrons (neutral) are present.
The average atomic mass in a.m.u of Element X given this information is ((121 * 43.2) + (123 * 53.1) + (129 * 3.70)) / 100
=5227.2 + 6531.3 + 477.3
=12235.8 / 100
122.358
Rutherford's experiment change the way scientists had previously viewed atomic structure as it provided insight into atomic structure, and Rutherford's model of the atom was proposed as a small, positive, massive nucleus contains the very vast majority of the mass of the entire atom with negatively charged electrons surrounding it at relatively large distances.
Rutherford's experiment paved the way for subsequent changes up to and including the currently accepted quantum mechanical atomic model as his model of the atom, the structure of the nucleus became more well-defined following the discovery of protons in 1919 and neutrons in 1932 as the particle constituents of the nucleus.
It was during the 1920s that a "wave mechanical model" came along through the work of several physicists most importantly de Broglie, Heisenberg, and Schrodinger) and Bohr's concept of electrons "orbiting" the nucleus was abandoned in favor of "orbitals" which are more abstract probabilistic representations of electronic structure within an atom.
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When you weigh ammonia, what fraction of it is hydrogen?
17.65 would be your answer
I have 5mg of a powder chemical ubtance that I need to diolve in a olvent with a 2g/L olubility. I ultimately need to give two doe of the chemical: 10ug/L and 100 ug/L. Ultimately, I mut add between 5ul and 10ul to the olution. I can create up to 3 tock dilution. How can I olve thi problem? Pleae how all work o I can learn! Thank you
To solve this problem, you can use a serial dilution method to achieve the desired final concentration of the chemical substance in the solvent.
First, determine the amount of solvent you need to dissolve the 5mg of the chemical substance. Since the solubility of the chemical substance is 2g/L, you need to use 2.5L of solvent (5mg / 2g/L = 2.5L).
Next, create a stock solution by dissolving the 5mg of the chemical substance in 2.5L of solvent. This will give you a stock solution with a concentration of 2mg/L.
Then, create a series of dilutions from the stock solution to achieve the desired final concentrations of 10ug/L and 100ug/L. You can do this by taking a certain volume of the stock solution and adding an equal volume of solvent to it. This is known as a 1:1 dilution and will reduce the concentration by half.
To create a 2:3 dilution, you can take 2 parts of the stock solution and add 3 parts of solvent. By doing so, you can use the stock solution to create a series of dilutions, each with a lower concentration than the previous one, until you reach the desired final concentrations of 10ug/L and 100ug/L.
Finally, you can measure the volume of the solution needed to add to the final solution between 5ul to 10ul. It's important to keep in mind that the accuracy of this method depends on the precision of the measurements taken, especially when working with very low concentrations.
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If 38.9 g of carbon reacts with excess iron (III) oxide, how many moles of carbon dioxide
will form?
The reaction is:
C + Fe2O3 → CO2 + Fe
Given:
Mass of C = 38.9 g
38.9 g C x (1 mol C / 12.011 g C) = 3.239 mol C
Since 1 mol C will produce 1 mol CO2 in the reaction, the number of moles of CO2 formed is 3.239 mol.
Mole is a unit of measurement used in chemistry to measure the amount of a substance, usually in terms of its mass. One mole of a substance is equal to its molecular weight in grams. The term originated from the Latin word ‘moles’, which means ‘mass’. Moles are commonly used to measure the amount of a substance in a given volume.
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Liquid nitrogen has different properties from gaseous nitrogen. Is it a chemical change when liquid nitrogen warms to gaseous nitrogen? yes, because chemical changes result in different properties. No, because chemical changes do not result in different properties. No, because the different properties are physical while the chemical properties remain the same. Yes, because warming is a chemical change even though the physical properties remain the same.
No, it is a physical change. Changing states is physical. A chemical change is to change the nature of something by changing it's chemical makeup.
What is a chemical change?Chemical synthesis, also known as the creation of new compounds through chemical fusion, or chemical decomposition, the process by which one material breaks down into two or more other substances, results in chemical changes. Chemical reactions are what these processes are known as, and they typically cannot be reversed without triggering more chemical reactions.A chemical change is a long-lasting transformation in which new types of substances are created, each with a unique chemical composition and set of physical and chemical characteristics from the original substance.A chemical reaction causes a chemical change, but a physical change occurs when matter changes forms without changing its chemical identity. Burning, frying, rusting, and rotting are some examples of chemical changes. Boiling, melting, freezing, and shredding are a few examples of physical changes.To learn more about chemical change refer to:
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The atomic mass of the element platinum (Pt) is 195.08 amu. How many atoms of platinum are in 195.08 grams?(1 point)
Responses
3.087×1021 atoms
3 point 0 8 7 times 10 to the 21th power atoms
6.022×1023 atoms
6 point 0 2 2 times 10 to the 23th power atoms
1.951×1025 atoms
1 point 9 5 1 times 10 to the 25th power atoms
1.175×1026 atoms
The mass of 6.02211023 platinum atoms is 195.08 g.
What is the purpose of platinum?
Jewelry is frequently made of platinum. However, catalytic converters for vehicles, trucks, and buses are where it is primarily used. Each year, this meets around 50% of the need. The conversion of engine emissions into less dangerous waste products is made possible by platinum.
What materials make up platinum?
Six isotopes make up natural platinum: platinum-190 (0.012%), platinum-192 (0.782%), platinum-194 (32.86%), platinum-195 (33.78%), platinum-196 (25.21%), & platinum-198 (7.36 percent). With the exception of platinum-190, that has been described as just a long-lived alpha emitter, all are stable.
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Answer:
The answer is 6.022 * 10^23 atoms
Explanation:
Six and twenty-two thousandths times ten to the twenty-third power atoms.
How many particles would be found in 2.38g of (NH4)3PO4
Answer:
That is 2.38 divided by Moller Mosque. That is 149
Hope tht helped :)
What is 3co2 + 4H2O = H2CO3?
Answer:
Bicarbonate is naturally produced by the reaction of carbon dioxide (CO2) with water. (H2O) to produce carbonic acid (H2CO3), which dissociates to a bicarbonate ion and a. proton (H. + ).
Draw the unique stereoisomers for 2-chloro-2,3-dimethylpentane. Show stereochemistry clearly. To ensure proper grading, explicitly draw all four groups, including wedge/dash bonds, around a chirality center. Indicate whether the compounds could exist in an optically active form.
a. Could exist in optically active form b. cannot exist in optically active form c. cannot be determined
There are two stereoisomers possible for 2-chloro-2,3-dimethylpentane with two chiral carbons. Yes, this indicates that the compounds can exist in optically active form.
Optical isomerism is most common in substances that have the same molecular and structural formula but they cannot be superimposed on one another. Stereoisomers that rotate the plane of polarized light typically exhibit optical isomerism.
Chiral carbons are those that lack a plane of symmetry and have distinct attached groups.
Achiral molecules have a plane of symmetry and all of the groups attached to the central carbon atom are the same.
Molecules with chiral centers exhibit optical isomerism and may exist in an optically active form.
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what mass of disodium tetra oxo sulphate (vi) will be dissolved in 100g of water, if the mole fraction of Na2So4 is 0.039?
Answer: 0.277g of disodium tetra oxo sulphate (vi) will be dissolved in 100g of water, if the mole fraction of Na2So4 is 0.039. ✅
PLEASEEEE GIVE BRANLIEST
Explanation:
The mass of a solute dissolved in a solvent can be calculated using the formula:
mass of solute = mole fraction of solute x mass of solvent / molar mass of solute
In this case, we are trying to find the mass of disodium tetra oxo sulphate (vi) (Na2SO4) dissolved in 100g of water, with a mole fraction of 0.039.
mass of Na2SO4 = (0.039) x (100g) / (142.04 g/mol)
mass of Na2SO4 = 0.277 g
So, 0.277 g of disodium tetra oxo sulphate (vi) will be dissolved in 100g of water, if the mole fraction of Na2So4 is 0.039. ✅
Which of the following ground-state electron configurations represents the element with the lowest
electronegativity?
Choose 1 answer:
A [Ar]3d¹04s²4p4
B [Ar]3d¹04s²4p5
[Kr]4d²25s²
D [Kr]4d¹05825p4
The answer is A [Ar]3d¹04s²4p4. This electron configuration represents the element Argon, which has the lowest electronegativity of the elements listed. Electronegativity is a measure of an atom's ability to attract electrons, so Argon has the lowest ability to do so.
What is electron configuration?Electron configuration is an arrangement of electrons in an atom or molecule in which each orbital is occupied by the maximum number of electrons with opposite spins. It describes the way that electrons are distributed among the available orbitals of an atom. Electron configuration is important because it determines the chemical properties of the atom, including reactivity and the way it bonds with other atoms. The distribution of electrons in an atom or molecule is determined by the quantum numbers associated with each electron. These quantum numbers indicate the energy, angular momentum, and other properties of the electrons. The electron configuration of an atom or molecule is determined by solving the Schrödinger equation for that particular atom or molecule.
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At what approximate positions might the following compounds show IR absorptions?
The following substances may have IR absorptions between 3000 and 2850 cm-1 and between 1725 and 1705 cm-1, approximately.
Describe IR absorption.The interplay between the molecular polarity transition moments associated with the molecular vibrations and the IR applied electric vector, in general, is what causes IR absorption. An electric field vector as well as the dipole changeover moment are parallel when absorption is greatest.
What is the cause of IR absorptions?In the potential vibrational and rotational modes, only molecules with minor energy differences can absorb IR. The oscillations or rotations inside a molecule must result in a net shift in the molecule's dipole moment in order for it to absorb IR.
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One of the line in the emiion pectrum of odium ha a wavelength of 590 nm. What i the frequency of thi line?
The line which has the wavelength of 590 nm in the sodium emission spectrum is yellow light whose frequency in the spectrum of sodium is 5.09×1014 sec−1.
To explain this let’s understand that the speed of light is equal to the product of wavelength and frequency.
Speed of light i.e. c =3⋅10^8ms
Also the wavelength(v) = 590 nm/5.9⋅10−7m
Now putting the formula we can state that v=cλ
Using all this together we can find λ i.e. frequency will be division of wavelength by speed of light and the answer will be =5.09×1014 sec−1
(5.9*10-7m/ 3.10^8 ms)
The emission spectrum of any chemical element/compound helps us in understanding the frequencies of electromagnetic radiation whose emission is due to an atom/molecule which transits from any high energy state to the lower energy state.
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What is the limiting reactant for each amount of reactants in the following reaction: 2Na (s) + Br2 (g) -> 2 NaBr (s)
a) 2 mol Na, 2 mol Br2
b) 2.5 mol Na, 1 mol Br2
c) 1.8 mol Na, 1.4 mol Br2
d) 12.6 mol Na, 6.9 mol Br2
Calculating the amount of product that can be formed by each reactant
Which is the limiting reactant N2 or H2?Since we have of hydrogen gas, we have more than enough to react all of the nitrogen gas, and the nitrogen gas will be used up before the hydrogen gas. As a result, nitrogen gas is the limiting reactant.
1.2mol Na x (2mol NaBr/2mol Na) = 2 mol NaBr***Limiting
2mol Br2 x (2mol NaBr/1mol Br2) = 2 mol NaBr
2. 1.8mol Na x (2mol NaBr/2mol Na) = 1.8 mol NaBr**Limiting
1.4mol Br2 x (2mol NaBr/1mol Br2) = 2.8 mol NaBr
3. 2.5mol Na x (2mol NaBr/2mol Na) = 2.5 mol NaBr
1mol Br2 x (2mol NaBr/1mol Br2) = 2 mol NaBr***Limiting
4. 12.6mol Na x (2mol NaBr/2mol Na) = 12.6 mol NaBr***Limting
6.9mol Br2 x (2mol NaBr/1mol Br2) = 13.8 mol NaBr
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What material is the limiting ingredient if you have 6 eggs, 1 cup of milk, 3/4 tsp of ground cinnamon, 1 tsp of ground nutmeg, and 8 slices of bread
Answer:
Below
Explanation:
For 8 slices of bread you need
8 eggs<==== you do not have enough ( enough for 6 slices)
2 cups of milk <====== you do not have enough ( enough for 4 slices)
2 tsp of ground cinnamon <==== you do not have enough ( enough for 3)
2 tsp of ground nutmeg <===== you do not have enough (enough for 4)
SO ALL of the ingredients are limiting ingredients for the 8 slices of bread
you will run out of cinnamon first <==it is the MOST limiting
Answer: B ground cinnom
Explanation:
be31 has a single electron. calculate the frequencies and wavelengths of light in the emission spectrum of the ion for the first three lines of each of the series that are analo- gous to the lyman and the balmer series of neutral hydro- gen. in what region of the spectrum does this radiation lie?
The frequencies and wavelengths of light in the emission spectrum of the Be3+ ion for the first three lines of each of the series that are analogous to the Lyman and the Balmer series are 48.8 eV, 97.6 eV, and 146.4 eV respectively, and wavelengths of 254 nm, 126 nm, and 84 nm respectively. This radiation lies in the ultraviolet region of the spectrum.
The frequencies and wavelengths of light in the emission spectrum of the Be3+ ion can be determined by calculating the energy of the electron in the ground state and in each of the excited states. The ground state energy of the ion is -13.6 eV.
The energy of the first three excited states of the ion is calculated by subtracting the ground state energy from the ionization energy, which is 13.6 eV. The frequencies and wavelengths of light of the three excited states are then calculated using the equation E=hv, where h is Planck's constant and v is the frequency of the light.
The wavelengths of light in the emission spectrum of the Be3+ ion for the first three lines of each of the series that are analogous to the Lyman and the Balmer series are 254 nm, 126 nm, and 84 nm respectively. These frequencies and wavelengths of light lie in the ultraviolet region of the spectrum.
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Complete question:
Be^3+ has a single electron. Calculate the frequencies and wavelengths of light in the emission spectrum of the ion for the first three lines of each of the series that are analogous to the Lyman and the Balmer series of neutral hydrogen. In what region of the spectrum does this radiation lie?
CAN SOMEONE PLEASE HELP ME, THANK YOU!!! I NEED THE ANSWER BEFORE 1/12, TMRW
Would you need to chemically or physically change the parts in order to separate a
compound? Explain why.
Answer: Only chemically.
Explanation: A compound is a pure substance composed of two or more different atoms chemically bonded to one another. That means that it can not be separated into its constituents by mechanical or physical means and only can be destroyed by chemical means.
LEARNING PACKET 2ALL ABOUT THE PC
PROGRESS WORKSHEET
Instruction: In this progress worksheet,kindly answer all the given
question and write your answer neatly.
Identification: Read the statement below and write your answer on the blank
provided below.
1. It designed for the use of an individual to watch movies, surf the Internet, send e-mail,
type a
letter, or even compose your very own song.
Answer: _________________________________________________________________________
2. It is a type of computer that has greater power, storage, and versatility compared to
other types of computers for personal use.
Answer: _________________________________________________________________________
3. It refers to the computer that combines all the components of a personal computer—the
monitor, the keyboard, storage devices, memory, and the processor—into one package that
is easy to carry around.
Answer: _________________________________________________________________________
4. It is a computers are lighter than laptops but with the same processing power and features.
Answer: _________________________________________________________________________
5. It is operated by using a touch screen that has a virtual keyboard, or an electronically-sensitive
pad where users handwrite their notes.
Answer: _________________________________________________________________________
HELLO CAN SOMEONE HELP TO ASWER THIS PLS I NEED IT THE DUE IS TODAY
Personal computer is designed for the use of an individual to watch movies, surf the Internet, send e-mail, type a letter, or even compose your very own song.
2. Desktop computer is a type of computer that has greater power, storage, and versatility compared to other types of computers for personal use.
3. Laptop computer refers to the computer that combines all the components of a personal computer and is easy to carry around.
4. Ultrabook is a computers are lighter than laptops but with the same processing power and features.
5. Tablet computer is operated by using a touch screen that has a virtual keyboard, or an electronically-sensitive pad where users handwrite their notes.
What is the computer about?Personal computer (PC) is a general term that refers to a computer that can be used by an individual for a variety of tasks such as watching movies, browsing the internet, sending emails, typing letters, and even composing music.
Therefore, Desktop computers are a type of personal computer that are designed for use at a fixed location. They have greater power, storage, and versatility compared to other types of computers for personal use. They generally have a separate monitor, keyboard, and processing unit, and are typically used for more demanding tasks such as gaming, video editing, and graphic design.
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IF4+ shape ?
a. octahedral
b. seesaw
c. square pyramidal
d. tetrahedral
e. trigonal pyramidal
Option (b) is correct. The shape of IF4 is seesaw geometry. This is a three dimensional arrangement determined by VSEPR theory.
According to the VSEPR theory, the shape or molecular geometry of a covalent structure is described by the three-dimensional arrangement of the bonding electron pairs around its central atom. We can determine the shape of a particular structure by using the valence shell electron pair repulsion, VSEPR theory. The seesaw geometry occurs when a molecule has a steric number of 5 with the central atom being bonded to 4 other atoms and 1 lone pair. An atom bonded to 5 other atoms forms a trigonal bipyramid with two axial and three equatorial positions but in the seesaw geometry one of the atoms is replaced by a lone pair of electrons which is always in an equatorial position. This is true because the lone pair occupies more space near the central atom than does a bonding pair of electrons.
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Please help chemistry
The mass of the Ag formed is 1080 g.
What is the mass formed?Since we do not have the equation of the reaction, it means that we have to write down the equation of the reaction by ourselves so that we can be able to answer the question and we have;
[tex]2AgNO_{3} + Zn ----- > Zn(NO_{3} )_{2} + 2Ag[/tex]
We have that zinc is the limiting reactant so;
If 1 mole of zinc forms 2 moles of Ag
5 moles of zinc forms 5 * 2/1 = 10 moles of Ag
Mass of the Ag = Number of moles * molar mass
= 10 moles * 108 g/mol
= 1080 g
The mass of the silver is 1080 g
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Heat energy can be transferred from one object to another because of _________.
Answer: Heat energy can be transferred from one object to another because of a difference in temperature.
Explanation: Heat energy is transferred from a warmer to a cooler object through conduction, convection and radiation. All of these require a temperature difference for heat to transfer.
Answer:
Temperature difference
Every matter has heat energy. The result of the movement of minute particles known as atoms, molecules, or ions in liquids, solids, and gases is nothing but heat energy. Heat energy can be transferred by one substance to another and the flow because of the temperature difference between two objects is known as heat.
Identify the conjugate base for each acid.
conjugate base of H3 PO4 :
conjugate base of HSO4-:
conjugate base of NH4+:
the conjugate base for each acid is conjugate base of H3 PO4 : PO4^3-
conjugate base of HSO4- : SO4^2-, conjugate base of NH4+ : NH3
A conjugate base is a species that is formed by the removal of a proton (H+) from an acid. An acid is defined as a species that can donate a proton, and a conjugate base is the species that results after a proton is removed. The acid and its conjugate base differ by only one proton, and are therefore related by the common ion effect.When an acid loses a proton, it becomes its conjugate base, and when a base gains a proton, it becomes its conjugate acid. Conjugate bases are typically less acidic than the acids from which they are derived, as they have an extra pair of electrons to stabilize the negative charge.Conjugate bases are also important in acid-base reactions, as they participate in the transfer of protons. They often play a key role in acid-base equilibria, and the strength of a conjugate base is often measured by its basicity constant (pKb).
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