1. Intro to General Chemistry

Which of the following best describes what happens to a substance during a physical change?

Which of the following best explains why a state change from liquid to solid is not considered a chemical reaction?

Which change is classified as a chemical change?

When copper metal is mixed with silver nitrate solution, is the observed change a chemical or physical change?

Which of the following lists includes common indicators that a chemical reaction has occurred?

What happens when you stir a spoonful of sugar into hot water?

Which of the following best describes the phase change(s) observed from the initial to final frame?

Which of the following is NOT an example of a chemical change?

Which of the following is an indicator that a chemical change has occurred?

Which of the following best describes a physical change?

During the evaporation of a saltwater solution, what happens to the salt?

Which of the following is an observation and not an inference?

During which change of state do atoms lose energy?

Which of the following is a chemical change?

Which is the main difference between physical changes and chemical changes?