An object will float when: a. buoyant force is equal to the weight of the object b. buoyant force is less than the weight of the object c. density is equal to the weight of the object d. density is greater than the weight of the object

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.