Spring Break CHEM HW

  • AP Chem
  • IB Chem
Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Ionca
I
Ionca
Community Contributor
Quizzes Created: 33 | Total Attempts: 37,635
| Attempts: 72 | Questions: 25 | Updated: Jun 30, 2023
Quiz Flashcard
Please wait...
Question 1 / 25
0 %
0/100
Score 0/100
1. Which statement matches a subatomic particle with its charge? 

Explanation

protons positive
electrons negative
neutrons no charge

Submit
Please wait...
About This Quiz
Spring Break CHEM HW - Quiz

Are you studying chemistry in school either high school or college and how much information on the subject can you recall? Take this quiz and be busy during the spring break. Find out how much information you retained.

2.
We’ll put your name on your report, certificate, and leaderboard.
2. The sum of the atomic masses of the atoms in one molecule of C3H6Br2 is called the 

Explanation

gram formula mass is the total of the quantities of each element along with their masses.

Submit
3. The valence electrons of a germanium atom in the ground state are located in the 

Explanation

electron configuration is 2-8-18-4, meaning four electron shells.

Submit
4. An orbital is a region of space where there is a high probability of finding 

Explanation

orbitals are the "rings" around the nucleus where an electron is likely to be found.

Submit
5. An atom of any element must contain    

Explanation

protons (+) and electrons (--) must be equal in an ATOM. If there is a charge, then the ATOM becomes an ION.

Submit
6. When an atom of lithium loses an electron, the atom becomes a 

Explanation

When an ion loses an electron, the resulting ion is POSITIVE. Since the lithium atom lost its valence shell, the radius decreased.

Submit
7. Which list of elements contains a metal, a metalloid, a nonmetal, and a noble gas? 

Explanation

metals = left side of periodic table
metalloids = along the staircase (except for Al)
nonmetals = upper right of periodic table
noble gas = group 18

Submit
8. Which sample of water contains particles having the highest average kinetic energy? 

Explanation

average kinetic energy means the EXACT same thing as temperature.

Submit
9. An oxidation-reduction reaction involves the    

Explanation

oxidation reactions lose electrons and reduction reactions gain electrons...the electrons are transferring.

Submit
10. Which process results in a chemical change?    

Explanation

burning magnesium ribbon involves changing the chemical content of the ribbon. The other three involve shifting the particles around slightly, not changing the composition.

Submit
11. Given the equation representing a system at equilibrium: 2SO2(g) + O2(g) <--> 2SO3(g) At equilibrium, the concentration of 

Explanation

The forward reaction must equal the reverse reaction. When one substance moves forward in the reaction, another substance must move in the reverse direction, meaning all components are constant.

Submit
12. Which energy change occurs in an operating voltaic cell? 

Explanation

As long as the solid is higher (on Table J) than the aqueous substance, the reaction will be spontaneous. The chemical difference causes the movement of electrons, meaning the energy changes from chemical energy in the solutions to electrical energy in the wires.

Submit
13. Which two physical properties allow a mixture to be separated by chromatography? 

Explanation

think about the chromatography experiment from living environment: the pigments must be soluble in the solvent then their polarities enable them to stick to the surface.

Submit
14. A molecular compound is formed when a chemical reaction occurs between atoms of 

Explanation

MOLECULAR compound equals COVALENT bonds.

bonds between nonmetals (H and O) are covalent.
All other bonds involve metals and nonmetals (IONIC bonds).

Submit
15. Which statement compares the masses of two subatomic particles? 

Explanation

protons and neutrons have nearly equal masses.
electrons weigh 2000 times LESS than protons and neutrons.

Submit
16. For a chemical reaction, the heat of reaction is equal to the 

Explanation

heat of reaction is a DIFFERENCE, indicating that subtraction is the math used.

Submit
17. The solubility of KCl(s) in water depends on the    

Explanation

Heating the water will enable more KCl to dissolve. Check Reference Table G for further assistance.

Submit
18. Given the balanced equation representing a reaction: 2NaCl → 2Na + Cl2 To break the bonds in NaCl, the reactant must 

Explanation

To break a bond, reactants must absorb energy. The energy is required to break any attractions between atoms in a compound.

Submit
19. The elements on the Periodic Table are arranged in order of increasing 

Explanation

From left to right, the atomic numbers increase.

Submit
20. What is the total number of electron pairs shared between the two atoms in an O2 molecule? 

Explanation

one bond = 2 electrons.

oxygen gas is a double-bonded molecule, which means 4 electrons.

Submit
21. The two isomers of butane have different    

Explanation

Isomer means that the substances are arranged differently. Their structures are different.

Submit
22. Under which conditions of temperature and pressure does carbon dioxide gas behave most like an ideal gas? 

Explanation

HIGH TEMPERATURE because the particles are moving faster, able to separate.
LOW PRESSURE because not much is keeping the particles together, able to expand like an ideal gas.

Submit
23. The bright-line spectrum of sodium is produced when energy is 

Explanation

When electrons move from higher shells (outer shells) to lower shells, light is given off.

Submit
24. Which substance can not be broken down by chemical means? 

Explanation

antimony is Sb...ammonia, methane, and water are all compounds.

Submit
25. The two forms of oxygen, O2(g) and O3(g), have   

Explanation

If the formula changes, the structure changes. If the structure changes, the properties change.

Submit
View My Results
Cancel
  • All
    All (25)
  • Unanswered
    Unanswered ()
  • Answered
    Answered ()
Which statement matches a subatomic particle with its charge? 
The sum of the atomic masses of the atoms in one molecule of C3H6Br2...
The valence electrons of a germanium atom in the ground state are...
An orbital is a region of space where there is a high probability of...
An atom of any element must contain    
When an atom of lithium loses an electron, the atom becomes a 
Which list of elements contains a metal, a metalloid, a nonmetal, and...
Which sample of water contains particles having the highest average...
An oxidation-reduction reaction involves the    
Which process results in a chemical change?    
Given the equation representing a system at equilibrium: ...
Which energy change occurs in an operating voltaic cell? 
Which two physical properties allow a mixture to be separated by...
A molecular compound is formed when a chemical reaction occurs between...
Which statement compares the masses of two subatomic particles? 
For a chemical reaction, the heat of reaction is equal to the 
The solubility of KCl(s) in water depends on the    
Given the balanced equation representing a reaction: ...
The elements on the Periodic Table are arranged in order of...
What is the total number of electron pairs shared between the two...
The two isomers of butane have different    
Under which conditions of temperature and pressure does carbon dioxide...
The bright-line spectrum of sodium is produced when energy is 
Which substance can not be broken down by chemical means? 
The two forms of oxygen, O2(g) and O3(g), have   
Alert!

Back to Top Back to top
Advertisement