How many moles of lithium metal would need to react with excess oxygen gas to produce 4 moles of lithium oxide in the following reaction? 4li + o2 → 2li2o

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.