CSEE (Form 4) Physical and Chemical Change — practice questions
4 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CSEE (Form 4) Physical and Chemical Change in the app →Water is boiled and turns into steam. Why is this counted as a physical change?What does the law of conservation of mass state about a chemical reaction?During a chemical reaction, which of these quantities is not always conserved?What does the law of constant composition say about different samples of the same compound?