Zn+ 2 HCl → ZnCl2 + H2 How many moles are hydrogen are produced from the reaction of five moles of zinc

What is the formula that this ionic compounds could form sr2+p3-o2-

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.