chemical calculation with mass

Cards (8)

what is the conservation of mass?
atoms are not created or destroyed just rearrange, so the total mass at the start is the same at the end
when a metal forms a metal oxide why does the mass increase?
atoms from the oxygen gas has been added
when an acid reacts with a metal why does the mass decrease?
a gas is produced and escapes
what is relative formula mass
the sum of the relative atomic masses in a substances
what is a mole
mass of a substance that contains 6.02 X 10^23 particles
mole equation
mass/mr
what is limiting reactant
the reactant that is completely used upin a chem reaction
what is formula for concentration
mass/volume