Reaction Rates Question Preview (ID: 33738)

a) Experiment B would be faster

b) Experiment A would be faster

c) More product would be made in experiment B

d) Experiment C would be faster

a) Reaction A was faster

b) Reaction B was faster

c) Reaction C was faster

d) Both reactions occurred at the same speed.

a) only change one variable at a time while keeping all other conditions the same

b) change all variable except one

c) repeat the experiment at least twice

d) measure everything carefully

a) they are very expensive

b) they are dangerous

c) they are not used up in a reaction

d) they do not do anything

a) Use smaller marble chips

b) Use a lower acid concentration

c) Use a lower temperature

d) Have a smaller surface area of marble

a) Using a catalyst

b) Increasing the temperature of reactants

c) Increasing the size of reactant particles

d) Increasing the concentration of reactants

a) All colliding particles have the same amount of energy

b) Only fast-moving particles collide with each other

c) Reactions can happen if the colliding particles have enough energy

d) Particles do not need to collide before they react

a) Particles begin to collide at higher temperatures

b) At higher temperatures particles move faster and collide more often

c) There are more particles at higher temperatures, so they collide more

d) The particles have less energy when the temperature is increased

a) The particles have more energy so there are more collisions

b) There are more particles so there are more collisions

c) The surface area is increased so there are more collisions

d) The particles are moving faster

a) Speeds up the rate of a reaction without being used up

b) Slows down the rate of reaction without being used up

c) Speeds up the rate of a reaction and must be replaced at the end of an experiment

d) Is the thing a cat makes before it goes shopping