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What is a coefficient in reaction?
The coefficients are the numbers written in front of the chemical formulas in a chemical equation, and tells how much of a certain substance is involved in the reaction. When there is no number, it is understood to be one. For example, the following equation, which represents the combustion of methane (CH4), could be read in a couple of different ways. CH4 + 2O2 --> CO2 + 2H2O One molecule of methane plus two molecules of oxygen produces one molecule of carbon dioxide plus two molecules of water. or One mole of methane plus two moles of oxygen produce one mole of methane plus two moles of water.
Is this equation balanced CH4 2O2 - CO2 2H2O?
In short, yes. On the left side there is 1 Carbon, 4 Hydrogen and 4 Oxygen. There is the same amount on these on the right. Remember 2H20 is the same as H402. The 2 in front of the water acts upon everything in the molecule.
