Dow Company refused to take responsibility for Bhopal Tragedy because they claimed that they acquired Union Carbide free of liabilities. Union Carbide owned the plant in Bhopal before. They settled the claim but paid substantially fewer fines than the amount being promised, until such time that Dow Company acquired them.
Is Dow chemical responsible for Bhopal?
India's Bhopal plant suffered a terrible tragedy when gas leaked out of it in 1984. You should be aware that The Dow Chemical Company (TDCC) has never owned or run the Bhopal plant. TDCC did not take over UCC's debts when Union Carbide Corporation (UCC) became a division of TDCC in 2001.
What Is the Meaning of Dow in the Stock Market?
The Dow Jones Industrial Average, also known as the Dow for short, is a metric used to determine the general direction of the stock market. 30 of the stocks with the heaviest trading volume are represented by their prices.
What is Dow chemical famous for?
The Dow Chemical Company (Dow) manufactures and provides raw materials for goods used in a wide range of sectors, including the appliance, automotive, agricultural, chemical processing, electronics, oil and gas, and processed food industries.
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How does amylose differ from amylopectin?
The Amylose the straight chain of the polymer of D-glucose units. The Amylopectin is the branched-chain polymer of D-glucose units.
The Amylose the straight chain of the polymer of D-glucose units. 20% of the amylopectin is present in the starch. It is soluble in the water. It is Straight chain of structure. It contains the α-1,4-glycosidic bonds that is between two glucose of units.
The Amylopectin is the branched-chain polymer of D-glucose units. 80% of the amylopectin is present in the starch. It is insoluble in the water. It is Branched structure. It contains the α-1,4-glycosidic bonds between the two glucose units of the straight chain and the α-1,6-glycosidic bonds is the branching.
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what is the spacing between the (211) planes of lead? would you expect to see this plane diffract in an xrd experiment? why or why not? lead has a fcc crystal structure with an atomic radius of 0.175 nm.
The interplanar spacing between (211) planes of lead is 0.155 nm. yes this plane diffract in an xrd experiment.
The interplanar spacing (d-spacing) between (211) planes of lead can be calculated using the following formula:
d = 2 * r / √h^2 + k^2 + l^2
where r is the atomic radius (0.175 nm), h, k, and l are the Miller indices for the particular set of lattice planes, and in this case (h, k, l) = (2, 1, 1).
Plugging in the values, we get:
d = 2 * 0.175 nm / √2^2 + 1^2 + 1^2
d = 2 * 0.175 nm / √4 + 2
d = 0.35 nm / 2.236
d = 0.155 nm
So, the interplanar spacing between (211) planes of lead is 0.155 nm.
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I need help asap!!!!!
A balanced equation obeys the law of conservation of mass which states that the number of reactants and products on both sides of the equation should be always equal.
What is a balanced equation?An equation in which the number of atoms of each element in the chemical reaction and the total charge are found to be the same for both the reactants and products. The mass of the reactants is equal to the mass of products.
The following steps are used to balance the given equation.
At first count all the number of atoms of each element on either side of the reaction.The number of 'Mg' atoms are equal on both sides. In order to balance 'NO₃' molecules multiply HNO₃ by 2.To balance the number of 'Cl' atoms, multiply 'HCl' with 2.The number of 'O' atoms on both sides are equal. i.e., 6.There are 2 'H' atoms on both side of the equation.Thus the balanced equation obtained is:
Mg (NO₃)₂ + 2HCl → 2HNO₃ + MgCl₂
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Marisol pours water into a large oven-safe glass bowl until it is about one-fourth full. She then places a small, heavy
cup inside the glass bowl. The cup is heavy enough that it does not float. She makes sure that no water enters the
small cup when she places it in the bowl. She then places the oven-safe bowl with the water and cup on an electric
burner. Finally, she turns the burner on to low.
Part A
What will happen to the water in terms of phase changes when Marisol turns on the stove
The water in the glass bowl will start to heat up and eventually reach its boiling point, causing it to change from a liquid to a gas (water vapor) through the process of boiling.
When Marisol turns on the stove, the electric burner will heat up the glass bowl containing the water. As the temperature of the water increases, its molecules will gain more and more energy, causing them to move faster and faster.
At a certain temperature, called the boiling point, the water will start to turn into water vapor (steam) as its molecules escape from the surface of the liquid and turn into gas. This is called boiling and it's a phase change from a liquid to a gas.
The small, heavy cup in the bowl will not float because it is denser than water and will remain in the same position.
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c++ does not have a built-in data type for storing strings of data. T/F
False. C++ has a built-in data type called std::string, which is designed to store strings of data. It is a class defined within the standard C++ library, and it is a part of the C++ Standard Template Library (STL).
What is Standard Template Library?The Standard Template Library (STL) is a collection of data structures, algorithms, and other programming tools for use in software development. It is a library of generic programming components that can be used to implement various data structures and algorithms, such as vectors, lists, maps, and queues. The STL is written in the C++ programming language and is included in most C++ compilers. The STL consists of four components: containers, iterators, algorithms, and functions. Containers are used to store and manipulate data, iterators are used to traverse data, algorithms are used for common operations such as searching and sorting, and functions provide additional functionality. The STL is designed to be efficient, flexible, and extensible. It is also designed to be portable, meaning that the same code can be used on different types of computers. By using the STL, developers can save time and effort in creating their own custom data structures and algorithms.
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Mix 5.40 g of Al with sufficient of Cl2. What mass of AlCl3 can form
aqueous magnesium chloride is mixed with aqueous sodium phosphate.
Answer:
i
Explanation:
determine the coordination number of the pb2 ion in ch3nh3pbi3, which possesses the perovskite structure and has recently been extensively investigated as a new type of solar cell material.
the coordination number of Pb2+ ion in CH3NH3PbI3 is 6.
The coordination number of the Pb2+ ion in CH3NH3PbI3 can be determined by analyzing the crystal structure of the material. CH3NH3PbI3 has a perovskite structure, which is a type of crystalline structure characterized by a repeating arrangement of metal cations and anions. The Pb2+ ion in CH3NH3PbI3 is surrounded by six I- ions, forming an octahedral coordination geometry. Hence, the coordination number of Pb2+ ion in CH3NH3PbI3 is 6.
It's worth mentioning that the perovskite structure of CH3NH3PbI3 is highly favorable for the performance of solar cells. The presence of Pb2+ ion in an octahedral coordination with I- anions enhances the absorption of light, while the CH3NH3 cations provide stability to the material. This combination of favorable properties makes CH3NH3PbI3 a promising material for solar cell applications.
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explain the probable source of error(s) in the experimental determination of the number of manual pages.
One of the most common sources of error in the experimental determination of the number of manual pages is human error.
What is human error ?Human error is defined as an unintentional action or decision that leads to a negative outcome. It is a broad term which encompasses any mistake, mishap, or lack of foresight that results in undesired consequences. It can include mistakes in judgment, oversight, miscalculation, insufficient knowledge or experience, inattention, or negligence. Human error is often a major factor in accidents, medical errors, and other negative outcomes. It is also a major contributor to organizational and operational failures.
This can occur when a researcher misreads a page, enters incorrect data into a spreadsheet, or fails to count all of the pages in the manual. Additionally, errors can occur due to the type of equipment used to measure the number of pages. For example, if a manual page counter is not calibrated correctly, the results may be inaccurate. Finally, if the manual pages are not organized and labeled properly, it can lead to discrepancies between the actual number of pages and the number reported.
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Dalton's experiments advanced our understanding of the atom without:____.
Dalton's experiments advanced our understanding of the atom without the use of sophisticated scientific tools that are available today.
In the late 18th and early 19th centuries, Dalton carried out a series of experiments that led him to propose the atomic theory, which revolutionized the way scientists thought about matter.
Despite his lack of access to modern instruments, Dalton was able to make several important observations about the behavior of gases, which led him to propose that all matter is composed of small, indivisible particles called atoms. Dalton also suggested that atoms of different elements have different properties and combine in fixed ratios to form compounds.
While Dalton's atomic theory has been modified and refined over the years, his experiments laid the foundation for our understanding of the structure and behavior of matter. Dalton's work demonstrates the importance of careful observation and deduction in scientific inquiry, even in the absence of advanced technology.
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during an experiment, jon exhales through a straw and blows bubbles into a solution. which observation would most likely indicate that a chemical reaction is occurring?
The solution becomes cloudy with a white solid, is the observation that indicates the chemical reaction.
A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products. Substances are either chemical elements or compounds.
A chemical reaction is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change. Absolute confirmation of a chemical change can only be validated by chemical analysis of the products.
Therefore, the solution becomes cloudy with a white solid is the correct choice.
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--The complete question is, During an experiment, Jon exhales through a straw and blows bubbles into a solution. Which observation would most likely indicate that a chemical reaction is occurring?
a. The bubbles disappear into the solution before reaching the surface.
b. The gas forms a layer above the surface of the solution.
c. The solution becomes very stirred up by the bubbles.
d. The solution becomes cloudy with a white solid.--
with the average atomic mass of 35.45 amu, what is the mass of exactly one hundred chlorine atoms in grams?
The mass of exactly 100 chlorine atoms is 3.545g with the average atomic mass of 35.45 amu,
To calculate this, we need to first understand the atomic mass of chlorine.
According to [1], the atomic mass of chlorine is 35.5g per 6.022 x 10^(23) atoms.
This means that one atom of chlorine has a mass of (35.5g)/(6.022 x 10^(23)).
To calculate the mass of 100 chlorine atoms, we must multiply the mass of one chlorine atom with 100,
giving us (35.5g)/(6.022 x 10^(23)) x 100 = 3.545g.
[2] and [3] confirm the atomic mass of chlorine as 35.45 amu.
the product is a single diastereoisomer, and can be determined by examining the relative configurations of the starting materials.
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When 0.10 mol NO2 is added to a 1.0-L flask at 25 °C, the concentration changes so that at equilibrium, [NO2] = 0.016 M and [N2O4] = 0.042 M. (a) What is the value of the reaction quotient before any reaction occurs? (b) What is the value of the equilibrium constant for the reaction?
(a) The value of the reaction quotient before any reaction occurs is 0.10 M.
(b) The value of the equilibrium constant for the reaction is 0.38.
The reaction between NO2 and N2O4 can be written as:
2NO2(g) ⇌ N2O4(g)
The reaction quotient (Q) is defined as the ratio of the concentrations of the products raised to their stoichiometric coefficients, to the concentrations of the reactants raised to their stoichiometric coefficients.
At the beginning of the reaction, before any reaction occurs, the concentration of NO2 is 0.10 M, and there is no N2O4. Therefore, the value of Q at this point would be:
Q = (N2O4^2)/(NO2^2)
= 0
The value of the reaction quotient at equilibrium can be found from the given concentrations, [NO2] = 0.016 M and [N2O4] = 0.042 M.
Q = (0.042^2)/(0.016^2)
= 0.38
The value of the equilibrium constant (Kc) is equal to the value of the reaction quotient at equilibrium. Therefore, Kc = 0.38.
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a balloon inflated with three breaths of air has a volume of 1.5 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?
The volume of the balloon if five more same-sized breaths are added to the balloon is 4L.A measurement of three-dimensional space is volume. Numerous imperial or US customary units, as well as SI-derived units, are frequently used to quantify it quantitatively.
The quantity of air a balloon can contain is measured by its volume. A balloon's volume is expressed in cubic feet or meters. A balloon can contain 14.5 cubic feet of air on average. The size of the balloon, the volume of air within, and the temperature of the air all have an impact on the volume of the balloon.
The amount of space occupied by a substance or item, or the volume of space enclosed within a container.
The volume of inflated balloon is 1.5 L
[tex]1.5 X \frac{1 breath}{3breath} =0.5[/tex]
The final volume after 8 breaths
[tex]0.5 X \frac{8 breath}{1 breath} =4 L[/tex]
Thus, the volume of the balloon after five more breaths is 4.5 L.
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A balloon filled with helium gas has a volume of 5 L and 112 moles, Assuming that the temperature and pressure is constant, how many moles would a 13 L sample contain?
Answer: Summary: The volume (V) of a gas changes inversely with the pressure (P) of the gas if there is no change in the temperature and the amount of gas.
Explanation:
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Describe what type of electron transfer happens between these two atoms.
Mg is a metal containing two valence electrons and oxygen is a gas with two non-metals. Mg donate the two electrons to oxygen and form an ionic bond in the compound MgO.
What is ionic bonding ?Ionic bonds are formed between a metal and non metal. Metals are electropositive and easily loss electrons to achieve octet. Non-metals are mostly electronegative and electron deficient and they gain electrons to attain octet in valence shell.
Mg is a second group metal containing two extra electrons in its valence shell. Hence, Mg easily loss these electrons to form Mg²⁺ ions. Oxygen contains 6 valence electrons and it must gain two more to achieve octet.
Therefore, oxygen gain two electrons from Mg and forms O²⁻ . These oppositely charged ions attracts electrostatically and form the ionic bond between the atom. Hence, MgO is an ionic compound.
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which of the following is not a property of carbon?group of answer choicesit can form single, double, and even triple bonds with itself.all compounds made from carbon are soluble in water.it can be built into rings and long chains.all organic molecules contain carbon atoms.
All compounds made from carbon are water soluble, which is not a property of carbon.
Due to its highly stable structure and the bonds formed, carbon is insoluble in any solvent. Carbon needs other atoms attached to it to become polar enough to dissolve in water. For example, carbon does not dissolve in water, but carbon dioxide (CO2) does. Most organic compounds are nonpolar and therefore do not mix with polar molecules such as water. Therefore, organic matter is generally insoluble in water. All compounds made from carbon are water soluble, which is not a property of carbon. Elemental carbon is an inert substance, insoluble in water, dilute acids and bases, and organic solvents. At high temperatures, it combines with oxygen to form carbon monoxide or carbon dioxide.
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Which have more reactive concentrated hcl or dilute hcl acid
Concentrated HCl is considered to be more reactive than dilute HCl acid.
This is because concentrated HCl has a higher concentration of hydrogen ions (H+) compared to dilute HCl, meaning that it can more easily donate hydrogen ions in reactions and therefore be more reactive. This property is related to the acidity of the solution, which is determined by the concentration of hydrogen ions in the solution. In general, the more hydrogen ions a solution contains, the more acidic the solution is and the more reactive it is.
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a gas has a pressure of 1.26 atm and accupies a volume of 7.40 l. if the gas is compressed to a volume of 2.93 l, what will its pressure be, asumming constant temprature?
According to the question, 3.26 atm will its pressure be, asumming constant temprature.
What is temprature?
Temperature is a measure of the thermal energy of a system or object. It is one of the fundamental properties of matter and is measured with a thermometer. Temperature is a measure of the average kinetic energy of the particles of a substance. Temperature is used to measure the levels of heat, cold and other thermal states. Temperature can be measured in Kelvin, Celsius, and Fahrenheit scales. Temperature is important to understand the behavior of matter and its properties. Temperature can affect the rate of a reaction, the state of matter, and the solubility of a substance.
Using the ideal gas law, the new pressure of the gas can be calculated as follows: P2 = (1.26 atm × 7.40 L) / 2.93 L
P2 = 3.26 atm
Therefore, the pressure of the gas will be 3.26 atm when its volume is decreased to 2.93 L, assuming constant temperature.
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Explain how soil contributes to biodiversity, fighting disease and agriculture.
Answer:
In order to promote biodiversity, fight disease, and advance agriculture, soil is essential in the following ways:
Biodiversity: A variety of microbes, insects, and plants that make up intricate food webs live in soil. The diversity of the soil fosters the growth of plants, which in turn provide habitat and food for other organisms, and contributes to the stability of the ecosystem.
Fighting disease: Soil microorganisms compete with pathogenic organisms for resources and space and also produce antimicrobial chemicals, which helps to avoid plant diseases. Additionally, minimising tillage and increasing organic matter are two soil management techniques that can help lower the prevalence of plant diseases.
Agriculture: Soil supports crops physically, supplies them with vital nutrients, and controls the flow of air and water. Crop yields and quality can both rise with healthy soil and a balanced soil microbiota. Furthermore, sustainable agriculture can be supported by soil management techniques like cover crops and decreased tillage that preserve soil resources and maintain soil health.
The soil is home to a wide range of bacteria, insects, or plants that support complex food webs.
What is soil?The bioactive, porous media that has grown in the top layer of the Earth's crust is known as soil. Being a source of water as well as nutrients, a filter for harmful wastes, a site for their breakdown, and a collaborator in the cycle of carbon as well as other substances through the planet's ecosystem, soil constitutes one of the main substrates of life on Earth.
In the following way soil contributes to biodiversity, fighting disease and agriculture. Biodiversity: The soil is home to a wide range of bacteria, insects, or plants that support complex food webs. Disease prevention: Soil microorganisms create antimicrobial compounds and compete against pathogenic organisms for nutrients and space, which helps prevent plant diseases. Agriculture: Soil provides crops with physical support, essential nutrients, and control over air and water flow.
Therefore, the soil is home to a wide range of bacteria, insects, or plants that support complex food webs.
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what is the empirical formula of a compound which, when analyzed, contained 69.42 %c, 11.57 % nitrogen, 13.22 % oxygen, and the rest, hydrogen?
The empirical formula of a compound can be determined by finding the simplest whole-number ratio of the atoms present in the compound. To do this, the percentage composition of each element in the compound must first be converted into its corresponding mass.
In this case, the percent composition data for each element can be converted to moles by dividing each value by the atomic mass of the element in question. For example, for carbon: 69.42 g C / (12.01 g/mol) = 5.787 mol C.For nitrogen: 11.57 g N / (14.01 g/mol) = 0.823 mol N.For oxygen: 13.22 g O / (16.00 g/mol) = 0.826 mol O
Next, the moles of each element is divided by the smallest number of moles of the elements present to obtain the simplest whole-number ratio of atoms in the compound. In this case, the smallest number of moles is 0.823 for nitrogen.
For example 5.787 mol C / 0.823 = 6.98 (round down to 6). 0.823 mol N / 0.823 = 1.00 (unchanged).0.826 mol O / 0.823 = 1.00 (unchanged)
Therefore, the empirical formula of this compound is C6HNO, where C represents 6 carbon atoms, H represents an unknown number of hydrogen atoms, N represents 1 nitrogen atom, and O represents 1 oxygen atom.
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a 1.0 x10 - 4 m solution has a ph of 10.00. the solute is a . select one: a. weak acid b. strong base c. weak base d. strong acid
a 1.0 x10 - 4 m solution has a ph of 10.00. the solute is a oiuyt strong base the concentration of the base relative to its dissociation constant
A pH of 10.00 indicates that the solution is basic with a hydroxide ion (OH-) concentration of 1 x 10-10 mol/L. To determine whether the solute is a weak or strong base, we need to consider the concentration of the base relative to its dissociation constant (Kb). If the concentration of the base is much greater than its Kb, it is considered a strong base, meaning it completely dissociates in solution. On the other hand, if the concentration of the base is much less than its Kb, it is considered a weak base, meaning it only partially dissociates in solution. In this case, with a hydroxide ion concentration of 1 x 10-10 mol/L and a low concentration of the solute, we can conclude that the solute is a strong base.
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difference between local action and polarizations
Answer:
Local action refers to the activities taken by a person or organization, typically within a defined area or locality, to address a particular issue or problem. Examples of local action can include the formation of local clubs and organizations, the establishment of community gardens, or the creation of educational campaigns.
Polarization refers to the tendency of individuals and groups to engage in more extreme forms of behavior, such as extreme political views, extreme religious views, or extreme social views. This often occurs when individuals or groups feel that their beliefs, opinions, and values are not being heard or respected by others. Polarization can lead to increased conflict and discord within a society.
the standard enthalpy of decomposition of the yellow complex nh3so2 into nh3 and so2 is 40 kj/mol. calculate the standard enthalpy of formation of nh3so2.
The standard enthalpy of formation of NH3SO2 is -302 kJ/mol
The standard enthalpy of formation of NH3SO2 can be calculated using the standard enthalpies of formation of its constituent elements, ammonia (NH3) and sulfur dioxide (SO2), and the standard enthalpy of decomposition of NH3SO2. The standard enthalpy of formation of a compound is defined as the change in enthalpy that occurs when one mole of the compound is formed from its constituent elements in their standard states.
The standard enthalpy of formation of NH3 can be found to be -46 kJ/mol and the standard enthalpy of formation of SO2 can be found to be -296 kJ/mol. The standard enthalpy of decomposition of NH3SO2 is given as 40 kJ/mol. Using these values, the standard enthalpy of formation of NH3SO2 can be calculated as follows:
ΔHf (NH3SO2) = ΔHf (NH3) + ΔHf (SO2) - ΔHd (NH3SO2)
ΔHf (NH3SO2) = -46 kJ/mol + (-296 kJ/mol) + 40 kJ/mol
ΔHf (NH3SO2) = -302 kJ/mol
So, the standard enthalpy of formation of NH3SO2 is -302 kJ/mol. This value tells us the amount of heat energy released or absorbed when one mole of NH3SO2 is formed from its constituent elements in their standard states.
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sodium hydroxide (naoh) has a lattice energy of -887 kj>mol and a heat of hydration of -932 kj>mol. how much solution could be heated to boiling by the heat evolved by the dissolution of 25.0 g of naoh? (for the solution, assume a heat capacity of 4.0 j>g
78.57mL solution could be heated to boiling by the heat evolved by the dissolution of 25.0 g of naoh.
Heat evolved by dissolution of 1 mole NaOH
= Lattice energy - hydration energy
= (-887kJ/mol) - (-932kJ/mol)
= 45kJ/mol
(Molar mass of NaOH = 39.997g/mol)
using the formula
Density = mass/volume
And
Volume = mass/density
Mass = 82.5g
density of solution = 1.05g/mL
So
Volume = (82.5g)/(1.05g/mL)
Volume = 78.57mL
Changes in physical or chemical processes frequently include the transfer of energy. According to the rule of conservation of energy, energy is neither generated nor destroyed during any physical or chemical activity. Under other words, the universe's whole supply of energy is kept in check. We must first identify two aspects of the universe, the system and the surrounds, in order to properly comprehend the energy changes that occur throughout a reaction. The particular area of matter in a given place that is being examined during an experiment or observation is referred to as the system. Everything in the cosmos that is not a component of the system is considered the surrounds.
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table salt, nacl(s), and sugar, c12h22o11(s), are accidentally mixed. a 4.00 g sample is burned, and 2.80 g of co2(g) is produced. what was the mass percentage of the table salt in the mixture?
To solve this problem, we need to use the chemical formula of table salt (NaCl) and sugar (C12H22O11).
1 mole of NaCl produces 1 mole of CO2, which has a mass of 44 g. 1 mole of C12H22O11 produces 1 mole of CO2, which has a mass of 44 g. We have 2.80 g of CO2, which is equivalent to 2.80/44 = 0.064 moles of CO2. From 0.064 moles of CO2, we can calculate the amount of NaCl and C12H22O11: 0.064 moles of CO2 is equivalent to 0.064 moles of NaCl, which has a mass of 0.064 x 58.44 g = 3.75 g.
0.064 moles of CO2 is equivalent to 0.064 moles of C12H22O11, which has a mass of 0.064 x 342 g = 21.88 g. The total mass of NaCl and C12H22O11 is 3.75 g + 21.88 g = 25.63 g. The mass percentage of table salt (NaCl) in the mixture is 3.75 g / 25.63 g x 100 = 14.7%.
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Based on the positions of the following elements on the periodic table, which of them would you expect to form a 3+ cation?
A) scandium
B) aluminum
C) phosphorus
D) calcium
E) Both A and B
In order to generate the Sc3+ cation, scandium sacrifices one 3d electrons and two 4s electrons. In order to generate the Al3+ cation, aluminum loses 1 3p electron as well as two 3s electrons.
What are two typical applications for scandium?Scandium is used as an alloys constituent in elevated halide lamps and sporting authority alloys, which are the two principal applications for the metal. When mixed with aluminum plus alloys constructed on aluminum, scandium prevents grain growth at warm altitudes.
Are individuals at risk from scandium?Scandium is not harmful, despite assertions to the contrary that certain of its elements may be cancerous. Scandium presents the biggest risk at work due to the possibility of fumes and damps being inhaled.
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a mole of oxygen (o2) molecules and a mole of carbon dioxide (co2) molecules at the same temperature and pressure have a) the same average molecular speeds. b) the same number of atoms. c) different average kinetic energy per molecule. d) the same number of molecules. e) different volumes.
A mole of oxygen (O₂) molecules and a mole of carbon dioxide (CO₂) molecules at the same temperature and pressure have the same number of molecules.The correct answer is D.
At the same temperature and pressure, a mole of oxygen (O₂) molecules and a mole of carbon dioxide (CO₂) molecules both contain the same number of molecules.
In honor of the Italian physicist Amedeo Avogadro, the quantity of units in a mole is also known as Avogadro's number or Avogadro's constant (1776–1856).
Equal volumes of gases under identical conditions should contain the same number of molecules, according to Avogadro's hypothesis. This idea helped establish atomic and molecular weights and gave rise to the concept of the mole.
Every material has the same amount of atoms or other particles in a mole. The mole has the following relationship to an element's mass: One mole of carbon-12 atoms weighs 12 grams and has 6.02214076 x 10²³atoms.
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how many electron pairs does carbon share in order to complete its valence shell?group of answer choices4231
Two electron pairs, carbon share in order to complete its valence shell. So, right choice is option (b).
Carbon is an element of periodic table with atomic number six and atomic mass or mass number 12g. The symbol which denotes the carbon atom is "C". The valance shell is the outer shell or orbital of an atom. The electronic configuration of carbon is equals to 2, 4 that is carbon has 4 electrons in its valence electron shell. The covalent bonds are formed between four carbon and hydrogen atoms. So, carbon shares 4 electrons i.e 2 pairs of electrons to other atoms to complete the valance shell or bonding. So, the right answer is 2 pairs of electron.
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Complete question:
how many electron pairs does carbon share in order to complete its valence shell?group of answer choices:
a) 4
b)2
c)3
d)1
1. Write the six sentences describing the relationship between temperature, pressure, and volume:
a.
b.
c.
d.
e.
f
Temperature, pressure, and volume are interrelated in a state of equilibrium. When temperature is held constant, an increase in pressure will result in a decrease in volume.
1.As the temperature of a gas increases, the volume it occupies at constant pressure also increases.
2.As the pressure of a gas increases, the volume it occupies at constant temperature decreases.
3.As the volume of a gas decreases at constant temperature, the pressure it exerts increases.
4.As the volume of a gas increases at constant temperature, the pressure it exerts decreases.
5.The relationship between temperature, pressure, and volume of a gas can be described by the Ideal Gas Law.
6.Changes in temperature, pressure, and volume can affect the physical and chemical properties of a gas.
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