Question

PLZ HELP IT IS SCIENCE
when sodium hydroxide dissolves in water is it A. physical change or B. chemical change

Answer 1

Answer:b

Explanation: you can’t see the difference of it changing

Answer 2

Answer:

a physical change

Explanation:

it is the same as adding salt into water, it may have dissolved but, removing the water will isolate NaOH therefore it is a physical change, as its chemical structure is unchanged due to the presence of water