What are two types of mechanical energy? a. electrical and kinetic b. nuclear and chemical c. radiant and thermal d. elastic and gravitational

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

Choose all the answers that apply. our solar system: is in a spiral galaxy no longer includes pluto is made mostly of empty space is in the andromeda galaxy is the only known system that supports life

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above