Open QuestionWhich best explains why making a pancake from batter is an example of a chemical change?779views
Open QuestionWhere are chlorofluorocarbons found? A. Coolants B. The atmosphere C. Solvents D. All of the above623views
Open QuestionWhen substances go through chemical changes, which of the following will always happen?564views
Open QuestionWhich process is a chemical change? Is it burning a match, boiling water, melting ice, or breaking glass?666views1rank
Open QuestionWhich property of physical changes explains why matter is conserved in a physical change?1150views
Open QuestionIf there are 8 g of a substance before a physical change, how much will there be afterwards?475views1rank