Question

a) Substances react with one another to form____
b) __has the smell of rotten egg.
c) The evolution of ______in a chemical reaction is identified by reddish brown fumes.
d) ____ is an insoluble solid that is formed during a chemical reaction when two soluble substances react with one another in a solution.​

Answer 1

Answer: a) chemical bonds

b) Hydrogen Sulphide

c) Lead Nitrate

d) Precipitate

Answer 2

Explanation:

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a) chemical bonds

b) Hydrogen Sulphide

c) Lead Nitrate

d) Precipitate