The Mass Of The Reactants Equals The Mass Of The Products

1) in a chemical equationa) the mass of the reactants equals the mass of the productsb)the mass of the products is greater than the mass of reactantsc)the number of atoms in the reactants and products must changed)energy as heat must be added to the reactants2)a chemical equation is balanced when thea)coefficients of the reactants equal the coefficients of the productsb)same number of each kind of atom appears in the reactants and in the productsc)products and reactants are the same chemicalsd)subscripts of the reactants equal the subscripts of the products3) Which equation is NOT balanced?a)2H2 + O2 –> 2H2Ob)4H2 + 2O2 –> 4H20c)H2 + H2 + O2 –> H2O + H2Od)2h2 + O2 –> H204)tell what type of chemical equation is represented by the following formula equation. Then balance the equationsC3H8(g) + O2(g) —> (heat is applied) CO2(g) + H2O (l)

Originally posted 2018-07-08 19:55:17. Republished by Blog Post Promoter