Week 16 Reaction Rate Question Preview (ID: 62468)


Rate Of Chemical Reactions. TEACHERS: click here for quick copy question ID numbers.

Which one of the following is NOT a factor that affects the speed of reactions?
a) concentration of reactants
b) temperature
c) surface area
d) state of reactants

For ______ reactions to take place the reactants must hit one another with enough energy
a) physical
b) chemical
c) solo
d) chain

When liquid or gas reactants are crowded close together we say they are ______.
a) dilute
b) concentrated
c) spaced
d) aligned

Concentrated reactants produce _____ reactions.
a) faster
b) slower
c) miniature
d) no

When reactants move _____, they hit with more force, which speeds up the reaction.
a) slower
b) north
c) south
d) faster

When _____ reactants are crowded close together only those on the surface can come in contact with the other reactants.
a) liquid
b) solid
c) gas
d) metal

A _______ is a chemical that speeds up a reaction but is not part of the reaction.
a) concentrate
b) nonmetal
c) catalyst
d) metalloid

If the reactants are spaced far apart, we say they are _____ (the opposite of concentrated).
a) dilute
b) dense
c) thick
d) condensed

Reactions with dilute reactants are _____.
a) faster
b) colder
c) warmer
d) slower

Which of these does NOT speed up a chemical reaction?
a) concentrated reactants
b) smaller surface area of solids
c) reactions at higher temperatures
d) reactions with a catalyst

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