1. Intro to General Chemistry

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

Which of the following would NOT be evidence of a chemical change?

Which of the following processes represents a chemical change?

Which of the following is not an example of erosion?

Gallium melting into its liquid form at 30°C is an example of a:

Two substances were combined and immediately a gas was produced. What type of change is occurring?

When a substance changes states, such as when it melts from a solid to a liquid, what type of change is occurring?

Which type of change can typically be reversed by altering the temperature?

Which term describes the process of changing from a gas or vapor to a liquid?

Which of the following most likely represents a chemical change?

Which of the following is evidence of a chemical change?

Which of the following is necessary to be certain that a chemical change has occurred?

Which of the following best describes whether a chemical change can be undone?

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

Which statement describes all chemical changes?