Question

1. Adding salt to water is makes it easy. Which of the following is true regarding this change?
a) It is a chemical change because new substance is formed
b) It is a physical change because the original substances can be recovered.
c) It is a chemical change because there is exchange of heat
d) It is a physical change because there is a slight change in colour.

Answer 1

Answer:

b) is the correct answer

Answer 2

it's a physical change because none of it's properties have changed and it can be converted to it's original form.

so it's option (b)

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