Which option correctly shows the concentration of H3O+ ions in pure water?

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid