Question

Question 12
Nuclear reactions always involve lots of energy.

True
False
Question 13
If a balloon is taken outside on a very cold day, what will occur?

a
Gas will flow into the balloon.
b
The volume of the balloon will decrease.
c
The volume of the balloon will increase.
d
The pressure inside the balloon will increase.

Question 14
Why does the chloride ion have a -1 charge?

a
Chlorine atoms have no electrons.
b
Chlorine atoms lose an electron.
c
Chlorine atoms gain an electron.
d
Chlorine atoms share electrons.

Answer 1

**Question 12:** Nuclear reactions always involve lots of energy.
**Answer:** True

**Question 13:** If a balloon is taken outside on a very cold day, what will occur?
**Answer:** b. The volume of the balloon will decrease.

**Question 14:** Why does the chloride ion have a -1 charge?
**Answer:** c. Chlorine atoms gain an electron.