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Answer is A
Reason is because an ideal gas requires lower pressure

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7-c
11-a

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Answer is D
Reason is because both the pressure and volume are the same for these gasses.
#15
Answer is C
Reason is because the  line spectra shows the release of electrons  from lower states to higher states.
#20

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3. The answer is B because in order for atoms to become neutral, you need the same amount electrons and protons.
22. The answer is A because Diamond and Graphite are made from Carbon. However they both are  2 seperate structures with different characteristics.
19. The answer is d because when you increase/ decrease temperature, chemical equation will shift left or right.
2. Is B because the gold foil experiment shows what the nucleus  looks like and the amount of electrons surrounding the nucleus
6. is A because ground state means original electron configuration
15. D because you need heat to melt ice into water.
8. B because malleability deals with metal. copper is a metal
17. B because of avogadro law, all gases have equal volume
1.  Temperature change can help make the equation not reach equilibrium
20. B colliding means interacting. 2 particles interacting
12. A because you are absorbing broken bonds and energy.

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20. The answer is B because the collision theory says that  chemical reactions occur when molecules collide with sufficient kinetic energy.
9. The answer is A because in table S it shows Ne has the lowest desnity.
14. The answer is A because C is an element not a compound so it can’t be decomposed by chemical means.
17.  The answer is b because they have the same volume which is 2.0 liters
19. The answer is D because temperature is a factor that will shift a chemical equilibrium.
11. The answer is C because it is the sum of the atomic masses.
24. The answer is A because it is FeO
5. The answer is A because in the wave-mechanical model the electrons are in the orbitals
16. The answer is D because Kinetic energy is temperature
6. The answer is A because at ground state sodium’s electron configuration is 2-8-1
12.  The answer is C because it shows a bond being broken and it is showing the energy being absorbed
13. The answer is B this is because it says an attraction that involves electrons and that is electronegativity

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#17 Answer is C
Because nitrogen has the highest electronegativity
#8 Answer is A
Because everything is evenly distributed
#15 Answer is D
Because you see the spectra when releasing energy and it goes for high to low
#3 Answer is C
Because F has the least electrons so that means it is the least compact
#7 Answer is C
Site Table H of Chemistry Reference Table
#10 Answer is A because they have no attractive forces and move randomly
#12 Answer is C
Because they won’t react if they don’t properly collide and have the right amount of energy
#13 Answer is

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10)  the answer is b since h 2 0 is seperated and then added together this make them a synthesis.
25) answer is d since the element Si is in on top of the zip.
5) LeChatelier's principle can be used to predict the type of bonds in reactants (b)
12) the least polar bond is found in a molecule of HI since its lower than the rest of it

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5) C because stress is involved with equilibrium.
10) Its D because 2H2 and O2 is synthesizing.
12) HI has a polar bond of .5 which is the least out of all the answers so it is A.
6) It's C because there is more protons than electrons making the net charge -1.
15) Its B because the answer choice matches the activation complex.

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1.Answer is it can not reach equilibrium because the reaction takes place in an open test tube, which allows other gas to enter
3.Answer is B because in an atom, it consist neutrons, that has a neutral charge, protons,that has a positive charge,and electron,that has a negative charge. The positive and negative charge cancel out,which leaves the atom neutral.
4.Answer is B because valence electrons are always on the outermost shell.
5.Answer is A because through the wave mechanical experiment, electrons are shown to be in orbitals.
11.Answer is A because the atomic number is the sum of the atomic masses of the atom of a molecule.
12.Answer is D because it shows the separated H2 and the absorb of energy.
14. Answer is A because only A is a element,only elements can not be broken down further.

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11: the answer is C because the nucleus has a positive charge
24: the answer is C because in table S, oxygen has the strongest attraction
17: The answer is A because in table S i didnt see ammonia as an element
7: The ion is smaller because it contains fewer electrons than the atom
19: the answer is B because ionic and molecular are categories of compounds

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7.- the answer is C because is in the table H
11.- The answer is A because
25.- D because all the information is on the table
12.- C they have different reactions
10.-the answer is A because motion of gas is random straight line is not a curved line and it doesn't attract forces.
7.-the answer is C is on the table H
4.-answer is D because they are Different CO and CO2
18.-D because theyhave the same temperature, pressure and volume.
17.- B florine because it says on the table J F2 is the most active
13.

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13. the answer is B
8. the answer is A
24. the answer is C
23. the answer is D
14. the answer is C

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1. This reaction will not reach equilibrium because the reaction takes place in an open test tube, therefore allows other gases to enter that are not supposed to be within the reaction.
3.(B) Atoms are neutral because the number of protons(Positive) equal the same number of the electrons(Negative) causing each other to cancel each other out.
5.(A) Electrons are located in orbitals as shown through the wave mechanical experiment.
7.(A) Because it’s increasing by atomic mass for every element.
8.(B) Because copper is a metal. Malleability deals with metals.
9.(A) Because The table S shows Ne has the lowest density.
11.(A) The atomic number is the sum of the the atomic
masses of the atoms in a molecule.
13.(B) Because atoms of electronegativity attract electrons.
14.(A) Because A is the only element. Elements can not be broken further.
16.(D) Because the Basic definition of temperature would be average kinetic energy.
18.(
22.(A) Diamond and graphite have different properties because they have different crystal structure causing them to have different physical properties
24.(A) Because it is FeO

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15.Answer is D because the problem only talks about temperature so it got to be thermal energy.
16.Answer is D because average kinetic energy is the basic definition of temperature.
17.Answer is B because the given has two liters, the answer got to have 2 liters so it's B.
20.Answer is B because reaction of particles is related to collision theory.
21.Answer is A because catalyst speeds up reaction with need of lower activation energy.
23.Answer is D because it shows a double replacement reaction.

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2) Answer is B because an atom is mostly empty and has a positive nucleus.
5) Answer is A because electrons revolve around orbitals.
6) Answer is B because the valence electron increased by one and the 2nd shell lost an electron.
7) Answer is A because each element in order is increasing by atomic number.
10) Answer is A because empirical and molecular are the two types of descriptions for chemical formulas unlike the other options.
13) Answer is B because electronegativity measures the attraction of electrons.
15) Answer is D because thermal energy is involved with heat which will cause an ice cube to melt in water.
19) It's B, a catalyst because when a catalyst enters into equilibrium, it changes the factors involved like the amount of energy needed/created.
20) Its B the collision theory because the theory gives reasoning why two particles can combine.
23) The chemical equation represents a double replacement reaction because NO and Cl are replacing each other, making the answer D.
24) Its C because there is 2 iron and 1 oxygen. Therefore, the equation would be Fe^2 O.
12) Answer is D because the formula shows that H2 bond was broken  and energy from the right was absorbed into both H's.
25) Answer is C because to balance out six moles of oxygen, 6 more moles of KClO^3 is needed.

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13. the answer is B because the lower the energy the higher the entropy entropy is disorder so say if it's seen as low energy is being lazy the more mess there will be
8. there is four H and C so the distribution of moles would be symmetrical meaning nonpolar
24. there is no elements and no compounds(compounds meaning two or more different moles together in every single mole)(element means its only an atom of one element)
23.regular state for potassium is   2-8-8-1 in an excited state one mole from the electron configuration is passed on to the last number from the number before the last one

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16. The answer is A because Ion A has a 8 protons and 10 electrons which have charges of 8+ and -10, add them together and you get 2-
18. The answer is B because Avogadro's Law states that anything with the same volume had the same moles which Gas Sample I and III both have a volume of 5.0
14. The answer is C because it contains wavelengths of both elements X and A.
8. The answer is A because anything nonpolar is symmetrical and we did this in a previous lesson in which I reflected in my notes.
11. The answer is A because when referring in the reference table the element Hg has melting of 234K.

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17. Ammonia is a chemical mixture and not an element meaning it can be broken down.
8. Carbon is linear making it a non-polar molecule.
15. Te is a metalloid as on the periodic table its located within that group.
3. I used Gay Lussacs law to figure this out.

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8) The answer is B
9) Answer is A
13) The answer is C because if you multiply the specific heat of water, which is 4.18 J, with the mass of the sample and the difference of the temperature, which is 44 C, you get around 9,100 J
17) The freezing point of mixture is lower than that of water
3) The answer is B
18) It's because more collisions occur between the carbon and water and sped up the reaction
15) The answer is B
25) The answer is D
22) The answer is B
2) The answer is C
19) When the system reaches dynamic equilibrium, the rates of the forward and reverse reactions stop
1) The answer is A
10) The answer is D

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2. the answer is B seen in the gold foil experiment every atom has a nucleus where all of its positive charge and most of its mass is concentrated it in
22. the answer is A because Diamond and Graphite have different characteristics and different structures
7. the answer is A, it's increasing by atomic mass every next element
4. the answer is B it's the last shell that valence electrons are found in krypton
5.the answer is A electrons are always found in orbitals
10.the answer is A empirical and molecular are used when talked about chemical formulas
13. the answer is B  atoms of electronegativity attracts electrons

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18.
14.
23. The answer is B because the atomic number of calcium is 20, it means that it has 20 protons & 20 electrons, making calcium neutral.
5.The answer is C because Le Chatelier's principle can be used to predict the behavior of a system due to changes in pressure, etc.
4.The answer is B
18.
9. The answer is A .
Ammonium ion: NH+4
Nitrate ion: NO-3
11.
20. The answer is C
8. The answer is B
4. The answer is B
24. The answer is A because the atomic mass of an element is the weighted average mass of the atoms in a naturally occurring sample of the element.
22. The answer is A
10. The answer is A
7. The answer is B

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14 ) THE Answer is b since you pug the values and calculate the answer gives you 6.15 l
4) answer is b because they system in nature usually undergo when it haves lower and higher energy
7) answer is b since the eletron configuration expresses an excited state
16)
19)
15)
13)
21)

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16) d) since in table j it shows that element Zn is mostly active and it can react with the previous elements
13) is b since it’s asking for the temperature
21) Answer is d  since all element are neutral since protons equals to electrons.
3) is b since water is hydrogen bonding and have the highest boiling point.

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Justin Santa - Answers

1c

1. - 44 mol.
10. - D.  An electron
12. - B. Protons and Neutrons
16. - the same molecular structure and the same properties
19. - B. ionic and molecules
23. - B. thermal, chemical, electromagnetic

1a

6. - A. a substance
7. - A. 37 kPa
11. - A. 234 k
12. - C. collide with proper energy and proper orientation
16. - A. A
19. - D. oxygen
22. - C. 23
23. - C. 2-8-8-1
24. - C. (it’s a diagram)

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Daniel Rojas  1a