Open QuestionWhere are chlorofluorocarbons found? A. Coolants B. The atmosphere C. Solvents D. All of the above650views
Open QuestionWhen substances go through chemical changes, which of the following will always happen?578views
Open QuestionWhich process is a chemical change? Is it burning a match, boiling water, melting ice, or breaking glass?694views1rank
Open QuestionWhen baking soda and vinegar react, the surface bubbles. What does this most likely indicate?854views
Open QuestionIf there are 8 g of a substance before a physical change, how much will there be afterwards?501views1rank