What are the following examples?
5 grams of sodium polyacrylate
The answer is 8, the number in front of the letters is always the coefficient
Answer:
Magnesium oxide is a type of magnesium mineral supplement that is mostly made of magnesium—it actually contains more magnesium than other magnesium supplements. Magnesium oxide is acquired by burning magnesium with pure oxygen, but this method is quite costly.
resource: https://www.verywellhealth.com/magnesium-oxide-benefits-4184809
This is a reaction of combustion of methane
CH₄ + 2O₂ = CO₂ + 2H₂O
k(H₂O)=2