Calculate the percent composition of each of the elements in the compounds below *KBr
*LiOH
*Mgl2
*Al2(SO4)3

Find the mass in grams of hydrogen gas produced when 14.0 moles of hcl is added to an excess amount of magnesium.

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate