A. what mass of chromium would be produced from the reaction of 57.0 g of potassium with 199 g of chromium (ii) bromide according to the following reaction?
b. which reactant is in excess and how many grams of this reactant are left over ?
2k + CrBr2 -> 2kbr + cr

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)