what are the products of this reaction? hcl+zn→________+________

Answer:

$H_2$, $ZnCl_2$

Explanation:

Step1: Identify reaction type

It's a single - displacement reaction.

Step2: Write reaction equation

$2HCl + Zn=ZnCl_2 + H_2\uparrow$. Zinc ($Zn$) replaces hydrogen ($H$) in hydrochloric acid ($HCl$) to form zinc chloride ($ZnCl_2$) and hydrogen gas ($H_2$).