Tema
Q:
A _ reaction is one in which two different compounds exchange positive ions and forms two new compounds.
synthesis
decomposition
single replacement
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.
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