Blockmeister said:Homework Statement
Im trying to solve these review questions but am second guessing my answers.
http://puu.sh/aKk5W/9695c07739.png
The main branches of chemistry are organic chemistry, inorganic chemistry, physical chemistry, analytical chemistry, and biochemistry.
An element is a substance that cannot be broken down into simpler substances by chemical means, while a compound is a substance made up of two or more elements chemically bonded together.
To balance a chemical equation, you must make sure that the number of atoms of each element on the reactant side is equal to the number of atoms of that element on the product side by adding coefficients in front of the chemical formulas.
An exothermic reaction releases energy in the form of heat, while an endothermic reaction absorbs energy from the surroundings in the form of heat.
To calculate the molar mass of a compound, you must first find the atomic mass of each element in the compound and then multiply it by the number of atoms present. Finally, add all of the masses together to get the molar mass.