I will give brainliest!!

Which branch of chemistry deals with the mass relationships of elements in compounds and the mass relationshops among reactants and products in chemical reactions?

a
quantitative analysis
b
entrophy
c
chemical kinetics
d
stoichiomentry

1. o2(g)as a product

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom