molecules of what?
Hydrogen gas.
Yes. When most metals react with dilute hydrochloric acid, metal chloride and hydrogen gas are the products. In the case of calcium, calcium chloride and hydrogen gas are produced.
Silver does not react with hydrochloric acid.
Hydrogen gas. This can be tested via the 'pop' test.
Hydrochloric acid evaporates off of potassium sulfate when it's produced. This results because potassium chloride is combined with sulfuric acid to create potassium sulfate.
Hydrogen gas.
Yes. When most metals react with dilute hydrochloric acid, metal chloride and hydrogen gas are the products. In the case of calcium, calcium chloride and hydrogen gas are produced.
Silver does not react with hydrochloric acid.
NaOH + HCl >> NaCl + H2O A salt and water produced.
Hydrogen gas. This can be tested via the 'pop' test.
Gold react with aqua regia not with hydrochloric acid.
Hydrochloric acid evaporates off of potassium sulfate when it's produced. This results because potassium chloride is combined with sulfuric acid to create potassium sulfate.
Pumice does not react with hydrochloric acid.
Carbonates react with hydrochloric acid.
No, hydrochloric acid does not need air to react with iron. When hydrochloric acid reacts with iron, you will notice the reaction because of the bubbling.
Sulfur does not react with hydrochloric acid.
Two metals that will react with dilute hydrochloric acid are zinc and magnesium.