Balancing Chemical Equations

The law of conservation of mass states that matter cannot be created or destroyed. It can only be rearranged to form a new substance. The elements or compounds on the left side of the reaction are called reactants. On the right side they are called products. An easy way to remember this is RAP (Reactants, Arrow, Products). Sort the following elements and compounds into the correct category. Reactants Products Sort the following reactions into the balanced or unbalanced categories Balanced Unbalanced Which compounds represent the product(s) in the following equation?C3H8 + 5O2 → 4H2O + 3CO2 C3H8 5O2 Only 4H2O Both 4H2O and 3CO2 Which is true about the law of conservation of mass? Atoms are created The same number of atoms are in both the products and reactants New atoms are created when a new substance is formed Atoms are destroyed Is the following equation balanced or unbalanced?P4 + 3Br2→ 2PBr3 Balanced Unbalanced Is the following equation balanced or unbalanced?AlBr3 + 3K → 3KBr + Al Balanced Unabalnced