If i have a chemical with a 9 on the ph scale, is it safe to handle with the same gloves as i’ve handled fire with? ?

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2

What is a metal replacement reaction

What are the chemical names of these compounds? ke: mg3n2: reset next