Consider the following balanced chemical equation: PA(s) + 6H2(g) → 4PH3 (9)

If 0.733 moles of P4 are reacted, how many moles of H2 were used?

Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium.b)heavier than helium.c)the same weight as helium.d)dependent on the element that reacted with carbon.

If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.

Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released