Question

2. Fill in the blanks.
a. The
in the word equation shows the direction of the chemical reaction
b. A substance that alters the rate of a chemical reaction is called a
c. One of the necessary conditions for a chemical reaction to take place is contact between the
that are
d. Some of the conditions such as
OT
necessary for a chemical reaction, can be written in the word equation,
the arrow​

Answer 1

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