How many atoms of hydrogen are found in 9.89 mol of hexane, C6H14?

In 2002, the rare earth elements mine in mountain pass, california was closed because

Will mark brainliest how many electrons can be held in the energy level n = 4?

Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.