4 Compare and contrast the reactants and products in the two combustion reactions below.
Balance the formulas to allow you to refer to the numbers of molecules of each
reactant and product in your answer.

Combustion of Methane

Methane (CH) + Oxygen
Carbon dioxide + Water

Combustion of Hydrogen

Hydrogen + Oxygen >
Water

methane + oxygen → carbon dioxide + water

Explanation:

methane + oxygen → carbon dioxide + water methane + oxygen → carbon dioxide + water methane + oxygen → carbon dioxide + water

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

fe 55.85 g/mol and h2o 18.02 g/mol.