C (s) + 2 H2 (g) = CH4 (g)
Answer:
25
Explanation:
mass number = protons + neutrons
= 13 + 12 = 25
Answer:
They bounce off.
Explanation:
They change into S-waves. They change into R-waves.
The mass of the product in a chemical reaction must be equal the mass of the reactants.
Install a ceiling fan , and avoid wasting water.
