Which of the following changes gives no evidence that a chemical reaction has taken place?

A cube of solid forms a puddle of liquid.

A certain liquid is added to a solid, and bubbles of gas form.

Two liquids are mixed, and a precipitate forms.

Heating a blue solid turns the solid white.

Question

31 December, 06:29

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Answers (1)

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Libby Lamb · Answer 1

I think the correct answer for this is

a cube of solid forms a puddle of liquid

but i am no sure it's correct or no

Which of the following changes gives no evidence that a chemical reaction has taken place?A cube of solid forms a puddle of liquid.A certain liquid is added to a solid, and bubbles of gas form.Two liquids are mixed, and a precipitate forms.Heating a blue solid turns the solid white.