Question

Write an equation for the reaction of solid aluminum metal with hydrochloric acid (hydrogen monochloride) dissolved in water to form aluminum chloride dissolved in water and hydrogen gas. When balanced, what is the coefficient for the hydrochloric acid (hydrogen monochloride)?

Answer 1

The coefficient for the hydrochloric acid is 6.

Step-by-step explanation:

Stoichiometric coefficient are the number written in front of the reactants and products in balanced chemical reaction.

When solid aluminum reacts with hydrochloric acid to give aluminum chloride and hydrogen gas.

`2Al(s)+6HCl(s)\rightarrow 2AlCl_3(aq)+3H_2(g)`

The coefficient for the aluminum is 2.

The coefficient for the hydrochloric acid is 6.

The coefficient for the aluminum chloride acid is 2.

The coefficient for the hydrogen gas is 3.