Nothing unless there is Oxygen in the substance you will be adding to hydrochloric acid.
Hydrochloric acid can react with iron in the absence of air to produce iron chloride and hydrogen gas. The reaction between hydrochloric acid and iron is a chemical reaction that does not require oxygen from the air.
hyddrogen replaced by oxygen because the zinc is an oxygen regents which reacts with H2
Copper oxide and hydrochloric acid will produce copper chloride.
When magnesium reacts with hydrochloric acid, it forms magnesium chloride and hydrogen gas. The magnesium metal reacts with the hydrochloric acid to produce magnesium chloride, a salt, and hydrogen gas is released as a byproduct.
Nickel carbonate reacts with dilute hydrochloric acid to produce nickel chloride, carbon dioxide gas, and water.
Hydrochloric acid will... HCl + KOH = KCl + H2O
This compound is the manganese dioxide, MnO2.
Quartz
The reactants in this reaction are sodium (Na) and hydrochloric acid (HCl).
Lithium reacts with hydrochloric acid to produce lithium chloride and hydrogen gas. The reaction is exothermic and vigorous, with the hydrogen gas being evolved as bubbles. The lithium chloride formed remains dissolved in the solution.
Calcite is a mineral that has a rhombohedral shape and reacts to dilute hydrochloric acid by effervescing or fizzing. This reaction is due to the presence of calcium carbonate in calcite, which dissolves in the acid to produce carbon dioxide gas.
Hydrochloric acid reacts with copper carbonate to produce copper chloride, carbon dioxide, and water. This reaction is a double displacement reaction where the hydrogen in the acid displaces the copper in the carbonate compound.