1. Intro to General Chemistry

A solid substance turns directly into a gas. Which term describes this change?

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

Which of the following is an example of a physical change?

Which type of change occurs when a solution is heated and water is removed by evaporation?

Which of the following is an example of a chemical change?

Which change of state occurs when a gas loses energy?

During which changes of state do atoms overcome the attractive forces between them?

During which change of state would the volume of a substance increase the most?

Which of the following reactions performed in the experiment involved a chemical change?

Which statement best describes how particles differ after a chemical change compared to before the change?

Which of the following is an example of a chemical change?

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

Which of the following is evidence that a physical change has occurred?

Which type of change occurs once the ice cube melts?

Which of the following demonstrates a chemical change?