This equation indicates that the reaction gives off heat. what is this type of reaction called? 2c4h10 +? o2 ? 8co2 + 10h2o + heat
a. an exothermic reaction
b. an endothermic reaction
c. absorption reaction
d. precipitation reaction

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

Each pair of clay balls represents to planetesimals if each plane test molluscum pound of the same material and is separated by the same distance which pair experiences the greatest gravitational attraction

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat