1. Intro to General Chemistry

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

Which of the following changes of state involves atoms or molecules gaining energy?

The melting of an ice cube is an example of which type of change?

Which of the following statements correctly compares physical and chemical properties?

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?