Check the equations that are correctly balanced. Al+3Br_(2)arrow AlBr_(3) H_(2)O+2O_(2)arrow H_(2)O_(2) CaCO_(3)arrow CaO+CO_(2) Fe_(2)O_(3)+3H_(2)arrow 2Fe+3H_(2)O

To determine which equations are correctly balanced, we need to ensure that the number of atoms of each element is the same on both sides of the equation.1. - Left side: 1 Al, 6 Br - Right side: 1 Al, 3 Br This equation is not balanced because there are 6 bromine atoms on the left and only 3 on the right.2. - Left side: 2 H, 5 O - Right side: 2 H, 2 O This equation is not balanced because there are 5 oxygen atoms on the left and only 2 on the right.3. - Left side: 1 Ca, 1 C, 3 O - Right side: 1 Ca, 1 C, 3 O This equation is balanced.4. - Left side: 2 Fe, 3 O, 6 H - Right side: 2 Fe, 3 O, 6 H This equation is balanced.Therefore, the correctly balanced equations are:- -