How many milliliter of a 0.77 M HCl solution are needed to react completely with 4.2 g of zinc to form zinc(ll) chloride? Answer in units of mL

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

What type of electromagnetic waves does the human eye see as the colors red blue or green a visible light waves b radio waves c infrared waves d microwaves

Question 5 match each term to its description. match term definition excess reactant a) reactant that can produce a lesser amount of the product limiting reactant b) reactant that can produce more of the product theoretical yield c) amount of product predicted to be produced by the given reactants