Chemical Reactions

2:1

1:1

1:2

2:2

1:2

2:1

1:1

2:3

A.

B.

C.

D.

A. Weigh the reactants, conduct the reaction in an open container, and weigh the products.

B. Weigh the reactants, conduct the reaction in a sealed container, and weigh the products.

C. Measure the volumes of the reactants, conduct the reaction in a sealed container, and measure the volume of the products.

D. Write the chemical formulas for the reaction and balance it.

A. Igniting the gas requires endothermic energy, the gas burning releases activation energy, and the egg solidifying requires exothermic energy.

B. Igniting the gas requires activation energy, the gas burning releases endothermic energy, and the egg solidifying requires exothermic energy.

C. Igniting the gas requires activation energy, the gas burning releases exothermic energy, and the egg solidifying requires endothermic energy.

D. Igniting the gas requires endothermic energy, the gas burning releases exothermic energy, and the egg solidifying requires activation energy.