Question

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Answer 1

Answer:

1) Reactants are always written on the left side of the chemical equation.

Therefore, in this reaction, Aluminium (Al) and Hydrochloric acid (HCl) are the reactants.

2) Products are always written on the right side of the chemical equation.

Therefore, Aluminium chloride (AlCl3) and Hydrogen gas (H2) are the products in this reaction.

3) Yes. The given chemical equation of the reaction is balanced.

Count the number of each element on the right and left. You'll get equal number of each element.

4) 6 hydrogen atoms were needed to produce 3 H2 molecules.

Look on the left side of the equation, 6H, that is, 6 hydrogen atoms produced 3H2 molecules (on the right, that is, products)

5) Word equation: When aluminium reacts with hydrochloric acid, aluminium chloride is formed and hydrogen gas is liberated.