The atomic mass of hydrogen is one. true or false

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.