The nuts and bolts of
chemical equations Part 5
Balance the following chemical equations
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7.
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 |
+
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 |
 |
 |
+
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 |
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8.
|
 |
+
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2
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|
 |
+
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2
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9.
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4
 |
+
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3
 |
|
2
 |
||
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10.
|
 |
+
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|
|
 |
+
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 |
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11.
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|
+
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2
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|
 |
+
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|
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12.
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2
 |
+
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2
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|
2
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+
|
|
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13.
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 |
+
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2
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|
2.gif){kind=small} |
+
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|
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14.
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+
|
2
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|
 |
+
|
2
|
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15.
|
2
 |
+
|
7
|
|
4
|
+
|
6
|
|
16.
|
2.gif){kind=small} |
+
|
|
|
2
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+
|
 |
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17.
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+
|
 |
|
 |
+
|
 |
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18.
|
2
|
+
|
 |
|
2
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+
|
|
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19.
|
 |
+
|
 |
|
 |
+
|
2
 |
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20.
|
2
 |
+
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|
|
2
|