1. Intro to General Chemistry

Which term best describes the process in which particles escape from the surface of a liquid and become gaseous?

When a puddle of water dries up, is this process considered a physical change or a chemical change?

Which of the following physical changes involves a change in a substance's state of matter?

Which of the following best explains how melting ice differs from burning a substance?

When two liquids are mixed and bubbles form, what type of change has most likely occurred?

Which term best describes a change in matter that produces one or more new substances?

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

Which of the following terms describes the process by which a gas changes directly into a solid?

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

Which of the following best explains why boiling water is considered a physical change?

Which of the following is evidence that a chemical reaction has occurred?

Which of the following would not necessarily indicate that a chemical reaction has occurred?

Which of the following is a sign that a chemical change might have occurred?

Which of the following is most likely a physical change?