Which of these is a chemical property of gasoline?
a. density
b. how it burns
c. boiling point
d. its odor

Option (b) is the correct answer.

Explanation:

A property that does not bring any change in chemical composition of a substance are known as physical properties.

For example, shape, size, mass, volume, density, etc of a substance are all physical properties.

And, a property that changes chemical composition of a substance is known as chemical property.

For example, precipitation, reactivity, toxicity etc are chemical property.

So, a property that shows how gasoline burns depicts a chemical property.

Thus, we can conclude that out of the given options how it burns is a chemical property of gasoline.

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explanation:

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l