consider the chemical equation H2O2 —> H2O + O2. If the reaction starts with 15g of H2O2, and results in 10g of H2O, how many grams of O2 must be present

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.