Question

2. Looking at the periodic table, determine the charge each atom will make when it bonds with other atoms.

Column A
1.
Calcium (Ca):
Calcium (Ca)
2.
Francium (Fr):
Francium (Fr)
3.
Bromine (Br):
Bromine (Br)
4.
Sulfur (S):
Sulfur (S)
5.
Xenon (Xe):
Xenon (Xe)
6.
Carbon (C):
Carbon (C)
7.
Phosphorous (P):
Phosphorous (P)
8.
Boron (B):
Boron (B)
Column B
a.-3
b.+1
c.-1
d.+3
e.+4/-4
f.+2
g.0
h.-2

3. Match the following terms to the correct definition

Column A
1.
chemical change:
chemical change
2.
physical change:
physical change
3.
chemical reaction:
chemical reaction
4.
Law of Conservation of Mass:
Law of Conservation of Mass
5.
chemical equation:
chemical equation
Column B
a.States that mass is neither created nor destroyed by chemical reactions or physical transformations
b.a process that produces a chemical change, in which substances are changed into new substances
c.a change in which the chemical makeup of the substance is not changed
d.a representation of a chemical reaction using chemical symbols and numbers
e. a change that takes place when atoms of one or more substances are rearranged into new combinations, forming one or more new substances

Answer 1

### Part 2: Atomic Charges When Bonding

**Column A**
1. Calcium (Ca): **f. +2**
2. Francium (Fr): **b. +1**
3. Bromine (Br): **c. -1**
4. Sulfur (S): **h. -2**
5. Xenon (Xe): **g. 0**
6. Carbon (C): **e. +4/-4**
7. Phosphorous (P): **d. +3**
8. Boron (B): **a. -3**

### Part 3: Definitions

**Column A**
1. Chemical change: **e. a change that takes place when atoms of one or more substances are rearranged into new combinations, forming one or more new substances**
2. Physical change: **c. a change in which the chemical makeup of the substance is not changed**
3. Chemical reaction: **b. a process that produces a chemical change, in which substances are changed into new substances**
4. Law of Conservation of Mass: **a. States that mass is neither created nor destroyed by chemical reactions or physical transformations**
5. Chemical equation: **d. a representation of a chemical reaction using chemical symbols and numbers**