Hey, lovely! It's a pretty lengthy process but here is a pretty clear video on how to do it. Hope this helps ya!
https://www.khanacademy.org/science/chemistry/chemical-reactions-stoichiome/balancing-chemical-equat...
5.00 x 1011/s = 5.05500kilohertz
M/V=D
65.14/35.4≈1.84
The density of the sulfuric acid would be about 1.84g/mL
A mixture is a compound of two or more substances a pure substance is only made of one kind of atom and a solution is composed of a liquid substance made of two or more types of atoms