review of stoichiometry

Match it! Select the correct answer from the pull down...Good luck!

The starting material in an equation is

When dealing with gases, the calculations are done at the conditions of

The law of conservation of mass means reactants and products must have equal

To calculate a stoichiometric problem that gives a mass and wants a mass, what must you use to do the conversions

The molar mass of NaBr is

The substance that is left over after a reaction takes place

The calculations of quantities in a chemical reaction

How many moles of CO are needed to react with 6.5 moles of O2 in the following 2CO + O2 --2CO2