Answers
3. The main difference between Rutherford and Bohr model is that Rutherford model does not explain the energy levels in an atom whereas Bohr model explains the energy levels in an atom.
4.
- Oxygen-16 has eight protons, eight neutrons, and eight electrons.
- Oxygen-17 has 8 protons, 8 electrons, and 9 neutrons.
- Oxygen-18 has 8 protons, 8 electrons, and 10 neutrons.
Hope this helps. Good luck on your learning journey :)
Related Questions
how many layers are there in the earth
Answers
Answer:
3 i think
Explanation:
The Earth is divided into three main layers. The dense, hot inner core (yellow), the molten outer core (orange), the mantle (red), and the thin crust (brown), which supports all life in the known universe. Earth's interior is generally divided into three major layers: the crust, the mantle, and the core.
What does the element tile on the
periodic table tell use about the element.
List 4 things
Answers
Many of earth resources are finite choose two of the following and describe how human both conserve and deplete this natural source food water and energy
Answers
Answer:
Gas!
Explanation:
It can be conserved by keeping it underground, even though it's dangerous if you keep it underground too far down it can explode and cause the Earth to have an huge expplosiion or Earthquake to where the earth can shift it's tectonic plates and cause new areas to be moved, or gone. To deplete this gas, they use it in cars, stoves, etc. and they use it up to where there can be no more gas left. Even though there is still natural gas under the Earth''s surface it can still be found and depleted in different type of unique ways people discover.
PS, Don't talk to my girl all harsh, and give her brainliest.
This might be the answer you were looking for informatically.
If an atom has 10 protons, how many electrons will it have?
Answers
There are 10 protons, and 10 electrons in un-ionized neon. Hope this helped.
Which compound (A,B or C) is most likely an ionic compound?
Answers
Answer:
B
Explanation:
I believe it is compound B, because ionic compounds can form crystals, and they can conduct electricity when dissolved in water.
I hope it helps!!
Compound B is an ionic compound as it is hard,brittle and conducts electricity.
What is an ionic compound?Ionic compound or electrovalent compound is a type of compound which is formed between two elements when there is an exchange of electrons which takes place between the atoms resulting in the formation of ions.
When the atom looses an electron it develops a positive charge and forms an ion called the cation while the other atom gains the electron and develops a negative charge and forms an ion called the anion.
As the two atoms are oppositely charged they attract each other which results in the formation of a bond called the ionic bond.They are hard, malleable, ductile and good conductors of heat and electricity.They have high boiling points.
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Derrick decided to research what factors might affect the properties of the solubility of a solution. After completing his research, Derrick knew that several factors affected the properties of solubility. Explain the factors that affect the properties of the solubility of a solution.
Answers
Answer:
Solubility refers to the maximum amount of solute that dissolves in a given amount of solvent at a particular temperature Factors Affecting Solubility 1. Effect of Temperature For some substances to dissolve in a given solvent, heat is absorbed. The reaction is endothermic. In this case, an increase in temperature increases solubility.
Explanation:
Solubility of a solution is affected by properties like temperature and pressure.
What is solubility?Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.
The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.Concept of solubility is not valid for chemical reactions which are irreversible. The dependency of solubility on various factors is due to interactions between the particles, molecule or ions.
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Keep the scientific definition of energy in mind. Do people get energy from other sources besides food? If yes, what are they ?
Answers
Answer:
Except for humans, plants and animals get all the energy they require from natural sources: from the food that they eat, or from sunshine through photosynthesis. Some organisms derive the energy they need through oxidation of inorganic compounds.
please help
1-Name the elements in gp1.
2-Why are these elements placed in gp1?
3-Mention the trends in atomic size,atomic number,mass number,reactivity,boiling & melting points.
Answers
Answer:
Are you studying?..............
Explanation:
lol
A sample of gas has an initial volume of 20 L and an initial pressure of 2.5 atm. If the pressure changes to 3.1 atm, what is the new volume, assuming that the temperature remains constant? Step by Step please!
Answers
The new volume is mathematically given as
V2= 16.12 L
What is the new volume?
Question Parameters:
A sample of gas has an initial volume of 20 L
and an initial pressure of 2.5 atm.
If the pressure changes to 3.1 atm
Generally, the equation for Pressure is mathematically given as
P1V1 = P2 V2
2.5 * 20 = 3.1 * V2
V2 = 50/3.1
V2= 16.12 L
For more information on volume
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For the parts in a system to work correctly, the parts must be arranged or built upon in a particular order. What is the correct order of the parts of a human body system from simplest to most complex?
organ
cell
organ system
tissue
ummm... this is middle school science btw
Answers
Answer:
cell
tissue
organ
organ system
two physical properties of oxygen gas
Answers
Answer:
oxygen is colorless, odorless, tasteless and soluble in water
Explanation:
Hope this helps
What’s the answer?????
Answers
Answer:
kinetic energy
potential energy
kinetic energy
kinetic energy
Explanation:
kinetic energy- energy associated with motion
potential energy- the energy that a piece of matter has because of its position or nature.
Explanation I need to show work pls help me
Answers
Answer
D. Acid rain reacting with limestone bedrock.
Explanation:
- Brief Description:
A chemical reaction occurs when acidic rainfall falls on limestone or chalk. During the process, new, soluble compounds are produced. These disintegrate in the sea and are washed away, weathering the rock. Some forms of rock are resistant to chemical weathering. When rain falls from the sky onto a limestone (CaCO3) statue, a reaction between sulphuric acid and calcium carbonate happens. Calcium sulfate is formed as a result of this process (CaSO4). Because calcium sulfate is soluble in water, the statue will ultimately disintegrate. Limestone is chemically worn through the carbonation process. Rainwater collects carbon dioxide as it travels through the atmosphere, forming a weak carbonic acid. Water and carbon dioxide react to generate a mild carbonic acid. The fractures in the limestone are acted upon by this mild carbonic acid. Many weak acids, such as carbonic acid, are found in water. When carbon dioxide gas from the atmosphere combines with rainfall, a weak but copious acid is created. Other forms of acid rain are produced by sulfur dioxide and nitrogen gases, which function as chemical weathering agents.- Chemical WeatheringChemical weathering is generally the most active and effective weathering process. Water within soil or stone dissolves minerals of soil, softens minerals that absorpb the water, and dissolves carbondioxide.Chemical weathering is the breakdown of rock by chemical processes. Water, air, and chemicals released by organisms cause chemical weathering of rocks when they dissolve the minerals in a rock.- Carbon Dioxide-Bicarbonate-Carbonate Equilibrium
The carbon dioxide/bicarbonate/carbonate buffer is an essential buffer in surface waters. When water is in equilibrium with both CO2 from the atmosphere and carbonate-containing rock, its pH is buffered to 8.3, which is close to the pKa of the weak acid bicarbonate HCO3- (pKa = 8.4).- Acid Rain The production of nitric and sulfuric acids in our atmosphere causes acid rain. These chemicals are strong acids that are very soluble in water and dissolve in cloud water droplets.The majority of nitrogen and sulfur oxides are caused by human activity. Electric utilities (60 percent), industrial combustion (17 percent), and industrial processes are the principal sources of sulfur dioxide emissions (8 percent ). Transportation, with internal combustion engines, accounted for more than half of all NOx emissions, with additional emissions from electric utilities (26 percent) and industrial combustion accounting for the remainder (14 percent ). Agricultural operations, particularly manure management, are the biggest source of ammonia emissions, but industry and transportation also emit some ammonia. Acid rain leads to the acidity of lakes and streams, as well as the degradation of trees at high elevations and vulnerable forest soils.- Effect of LimestoneCalcium carbonate, often known as [Ca][CO3], is a common mineral. One well-known form of calcium carbonate is limestone. Acids in acid rain increase calcium carbonate breakdown by interacting with the carbonate anion.This results in a bicarbonate solution. Because surface waters are in balance with atmospheric carbon dioxide, the concentration of carbonic acid, H2CO3, in the water remains constant.Because the minerals react with the excess acid, the presence of limestone and other calcium carbonate rock in lakes and streams helps to maintain a steady pH. However, acid rain can finally overwhelm the surface water's buffering ability.Your friend states that she avoids acidic foods like tomatoes and orange juice because they give her an acid stomach. how would you respond
Answers
I will respond by telling her to continue with it in order to prevent the risk of GERD.
What is GERD?This is referred to as Gastroesophageal reflux disease and occurs when stomach acid or bile flows into the food pipe and irritates the lining.
Avoiding acidic foods will reduce the risk of him getting this type of disease which is why he should be encouraged.
Read more about GERD here https://brainly.com/question/1460107
Why is the right side
of the periodic table
negative (gaining
electrons) and the
left side positive
(loosing electrons)?
Answers
Answer:
The elements on the left-side of the periodic table are relatively electron deficient. So due to their comparatively low effective nuclear charges (the net positive charge of the protons minus the shielding core electrons below the valence level), their electrostatic hold on these electrons are weak.
Elements further right on the period table though, have higher effective nuclear charges and stabilize electrons more effectively. Which leads to localized covalent bonding and the formation of molecules.
The right side contains non metals while the left side contains metals.
Metals lose electrons (negative electrons). They now have more protons, therefore making the ion positive.
Non metals gain electrons (positive electrons). So the ion has more electrons than protons which makes the ion negative.
02
Molten Nacl conducts electricity due to the presence of
a) free eletrons b) free ions
c) free molecules d) atoms
sodium and chloride.
Answers
Answer:
b) free ions
Explanation:
when an ionic compound melts, the charged ions are free to move. Therefore, molten ionic compounds do conduct electricity.
Molten NaCl or sodium chloride conducts electricity due to the presence of free ions (B).
Gizmo warm up in the phases of water gizmo you can heat up or cool down a beaker of water. Press heat to heat up the water. Wait until the Temperature stops rising and obsevere. What happened
Answers
Answer:
This question is a little confusing but I believe its describing the actions of what Gizmo is doing with the water??
Explanation:
How much heat do you need to raise the temperature of 150 g of gasoline from −30 °C to −15 °C ?
A.) 4.68 kJ
B.) 5.00 kJ
C.) 6.66 kJ
D.) 9.40 kJ
Answers
Answer:
krusty crab pizza
the answer is c
Explanation:
Explain why organisms need to carry out the process of cellular respiration
Answers
3CuCl2 + 2Al => 3Cu + 2AlCl3
Answers
The reaction includes the single replacement reaction and redox
Further explanationSingle replacement : one element replaces another element in a compound
A + BC ⇒ AC + B
The oxidation-reduction reaction or abbreviated as Redox is a chemical reaction in which there is a change in oxidation number
3CuCl + 2Al => 3Cu + 2AlCl₃
1. Single replacementAl replacing Cu in the CuCl compound
2. Redox reaction3Cu²⁺ + 6e⁻⇒ 3Cu reduction(oxidation number from +2 to 0)
2Al⇒2Al³⁺+6e⁻ oxidation(oxidation number from 0 to +3)
**Please answer quickly!** 5.1169 mol of Ne is held at 0.9148 atm and 911 K. What is the volume of its container in liters?
Answers
Answer:
418.352441397 Liters
Explanation:
You start off with your equation of PV=nRt, where P= Pressure, V= Volume, n= The amount of moles, R= the gas constant which is 0.0821, and t= The temperature.
You are solving for volume so you would divide the left side by P so you can isolate the Volume. Now you have V=nRt/P.
Next you would fill in all of the variables. n=5.1169, R=0.0821, t=911K, and P=0.9148atm.
You would get the equation V=(5.1169*0.0821*911)/0.9148
Your final answer would be 418.352441397 Liters, or rounded to 418.35 Liters.
The volume of the container is 418.15 L
Ideal gas lawFrom the question, we are to determine the volume of the container
From the ideal gas equation, we have that
PV = nRT
Where P is the pressure
V is the volume
n is the number of moles
R is the gas constant ( R = 0.08206 L.atm.mol⁻¹.K⁻¹)
and T is the temperature
From the given information
P = 0.9148 atm
n = 5.1169 mol
T = 911 K
Putting the parameters into the formula, we get
0.9148 × V = 5.1169 × 0.08206 × 911
Then,
[tex]V = \frac{5.1169 \times 0.08206 \times 911}{0.9148}[/tex]
V = 418.15 L
Hence, the volume of the container is 418.15 L
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Learning Task 1 Match column A with column B. Column A Column B 1. Phase Change -2. Freezing 3. Condensation 4. Melting 5. Evaporation a. temperature wherein a liquid solidifies b. change from one state to another without a change in chemical composition c. the temperature at which solid turns into a liquid d. the temperature at which vapor pressure becomes high that causes bubbles to form inside the body of the 6. Freezing point 7. Boiling point 8. Melting point 9. 100°C 10.0°C e. f. liquid the change from liquid to gas happens when solid turns to liquid freezing and melting point of water boiling point of water happens when a gas turns into a g h. i. liquid
Answers
Change of state occurs when heat is supplied or removed from a substance.
What is change of state?Change of state refers to the changes that occur when a substance changes from one physical state to another due to changes in its temperature.
It is also known as phase change.
Phase Change can also be defined as change from one state to another without a change in chemical composition.
Some of the phase changes include:
Freezing: when liquid changes to solidCondensation: when gas changes to liquidMelting: when solid changes to liquidEvaporation: when liquid changes to gasThe other terms associated with phase change include:
Boiling point: the temperature at which vapor pressure becomes high that causes bubbles to form inside the body of the liquidFreezing point: temperature wherein a liquid solidifiesMelting point: the temperature at which solid turns into a liquid.Learn more about change of state at: https://brainly.com/question/18372554
What does the abreviation asa stand for chemically?.
Answers
Answer:
it stands for Acrylonitrile styrene acrylate
Explanation:
different between larva of a silk work and larva of a bee
Answers
Which of the following best defines one mole of a substance? (5 points) Mass, in grams, of each particle of the substance Mass, in grams, of the nucleus of the substance's atoms Amount of substance present in one atom of the substance Amount of substance present in Avogadro's number of particles of the substance
Answers
Answer: The mole, symbol mol, is the SI base unit of amount of substance. The quantity amount of substance is a measure of how many elementary entities of a given substance are in an object or sample.
Explanation:
Why alcohol is weaker acid than water
Answers
Answer:
ACIDS ARE WEAKER THAN WATER
Explanation:In general, alcohols are weaker acids than water because the OH group in alcohols is less polar than the OH group in the water. The electron releasing nature of the R group in alcohols decreases the polarity of the OH bond, which in turn decreases the acid strength of alcohols.
Methane is the main constituent of a fossil fuel.
(i) Name this fossil fuel.
Answers
Answer:
natural gas
Explanation:
natural gas is formed deep beneath Earth's surface which primarily consist of methane.
methane is considered cleanest burning fuel.
12.0 g of carbon atoms, each of mass 12.0 amu
Answers
Answer:
A mole of carbon-12 atoms weighs 12 grams, and there are 6.022 x 1023 atoms in a mole. Dividing 12 grams by this incredibly large number of atoms tells us that one carbon-12 atom weighs 1.99 x 10-23 grams. Since a carbon atom weighs 12 AMU, one AMU is equivalent to 1.66 x 10-24 grams.
Explanation:
google.
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8. What is the balanced equation when aluminum reacts with copper (II) sulfate?
a. Al + Cu S Al S + Cu
b. 2A1+ 3CuSO4 → Al2(SO4)3 + 3Cu
c. Al + CuSO4 → AISO4 + Cu
d. 2Al + CuSO4 → Al SO4 + 2Cu
Answers
Answer:
b. 2A1 + 3CuSO4 → A12(SO4)3 + 3Cu
2Al + 3CuSO4 => (Al)²(SO4)³ + 3Cu
Your answer is letter b :)
3. There are seven periods in the periodic table. Why are the elements arranged into these seven periods?
Answers
Answer:
Period 6 and 7
tbh i dont know the answer but the explanation
Explanation:
Period 6 and 7 have 32 elements because the two bottom rows that are separated from the rest of the table belong to those periods. They are pulled put in order to make the table itself fit more easily onto a single page
i hope that helps :)