Question

True or false? For the reaction represented by the balanced chemical equation
Mg(OH)2(aq) + 2HCl (aq) —> 2H2O(L) + MgCl(aq) for 0.40 mole of Mg(OH)2, 0.20 mol of HCl will be needed.

Answer 1

Answer:

False.

Explanation:

From the balanced equation, 1 mole of  Mg(OH)2 reacts with 2 moles of HCl.

So for 0.40 moles of  Mg(OH)2 we need 2*0.4 = 0.80 moles of HCl.