1
.
Calcium
carbonate
+
hydrochloric
acid
?
____________________
____________________
+
____________________
+
____________________
____________________
2
.
Nitric
acid
+
____________________
____________________
?
copper
nitrate
+
water
+
carbon
dioxide
3
.
Potassium
oxide
+
____________________
?
potassium
hydroxide
4
.
Barium
hydroxide
+
____________________
____________________
?
Barium
citrate
+
water
5
.
Zinc
+
____________________
____________________
?
zinc
chloride
+
copper
6
.
____________________
____________________
+
sulfuric
acid
?
copper
sulfate
+
____________________
7
.
Sodium
hydroxide
+
____________________
____________________
?
sodium
bromide
+
water
8
.
____________________
+
zinc
sulfate
?
Magnesium
sulfate
+
zin
c
