Which of the following metals on reaction with water releases hydrogen gas?
Sodium
Copper and Sodium
Copper
Gold
Metals such as copper, gold, mercury, are less reactive and cannot displace hydrogen from water or acids as hydrogen gas.
When the copper oxide is heated with hydrogen, copper metal and water are formed. What happens to the hydrogen in this reaction?
Copper oxide is heated with hydrogen to form copper metal & water. Which one is the oxidizing agent?
Copper oxide is heated with hydrogen to form copper metal and water. What happens to copper oxide?