1. Intro to General Chemistry

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?

Which of the following is NOT typically considered an indicator of a chemical change?

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

Melting can be best described as a process in which molecules:

Which statement best describes what happens to the particles in a substance during a physical change?

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

When a solution containing dissolved elements and compounds is left to evaporate, what typically happens to the dissolved substances after the water has evaporated?