Tema
Q:
\( \mathrm{Zn}+\mathrm{CuSO}_{4}->\mathrm{Cu}+\mathrm{ZnSO}_{4} \) is a single replacement reaction.
True
False
Q:
a) Water \( \left(\mathrm{H}_{2} \mathrm{O}\right) \)
Q:
The chemical formula for a substance is \( \mathrm{SO}_{2} \).
Name the two chemicals in this substance.
Q:
To prepare the 0.00100 M NaSCN solution:
- Use M1V1=M2V2 to calculate the amount of 0.0200 M
NaSCN needed to make 100 mL of a 0.001 M NaSCN
solution.
Q:
Describe Gay-Lussac's Law
in tems of pressure, volume,
and temperature. (How are
they related and what is
held constant?)
Q:
Describe Charles's Law in
terms of pressure, volume,
and temperature. (How are
they related and what is
held constant?)
Q:
Describe Boyle's Law in
terms of pressure, volume,
and temperature. (How are
they related and what is
held constant?)
Q:
11. In an endothermic reaction, heat from the surroundings plus the
chemical energy of the reactants is converted into the
of the products. Circle the correct answer.
a. kinetic energy
b. potential energy
c. chemical energy
Q:
6. During a chemical reaction, energy is either released or absorbed
7. Is the following sentence true or false? Physical and chemical changes
can be either exothermic or endothermic changes.
8. What is an exothermic reaction?
9. Is the following sentence true or false? In exothermic reactions, the
energy required to break the bonds in the reactants is greater than the
energy released as the products form.
Q:
2. Chemical reactions involve the breaking of chemical bonds in the
reactants and the formation of chemical bonds in the
Circle the correct answer.
products reactants
Is the following sentence true or false? The formation of chemical bonds
absorbs energy.
Is the following sentence true or false? The heat and light given off by a
propane stove result from the formation of new chemical bonds.
The combustion of one molecule of propane \( \left(\mathrm{C}_{3} \mathrm{H}_{8}\right) \) results in the
formation of \( 6 \mathrm{C}=\mathrm{O} \) double bonds and \( 8 \quad \mathrm{H} \) single bonds.
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