Write TRUE if the statement is correct and FALSE if the statement is wrong. Write your answer before the number.
____1. The yeast’ catalase acts as a catalyst in speeding the removal of oxygen in
hydrogen peroxide.
____2. Change in the odor of rotten fruits signifies that physical change occurs.
____3. The higher the average of objects’ kinetics during the reaction, the lower is the
temperature of the reaction rate.
____4. Low concentration of chemical slows reaction rate.
____5. Powdered reactants have a faster reaction rate than a reactant in tablet form
due to their surface area.
____6. Removing heat will lower the reaction rate causing the particles of the
reactants to slow down, resulting in less frequent collisions.
____7. A diluted acid solution will react more quickly than a concentrated acid
solution because there are more molecules present, increasing the chance of collisions.
____8. More collisions among molecules, mean a higher rate of reaction.
____9. Adding catalysts such as yeast, will increase the rate of reaction because this
causes the particles of the reactants to move more quickly, resulting in more
collisions and more.
____10. It is faster to dissolve rock salt in cold water than in hot one.