Jane is on a merry-go-round that is moving at a constant speed. Her velocity is also constant.

True

False

Which reaction below represents the first ionization of O? a. O (g) + e - → O - (g) b. O + (g) + e - → O (g) c. O (g) → O + (g) + e-d. O - (g) + e - → O2 - (g) e. O - (g) → O (g) + e-

The number of protons in the nucleus of the atom

What is the reason why bubbling occurs when vinegar is mixed with baking soda? A) a precipitate B) a gas is produced C) a color change occurs

The energy from the sun, in the form of light, hits the earth through the process of radiation. when the light is absorbed by earth's surface (land or water), it heats up air directly in contact with that surface.

Does magnesium react to water?

Which fossil fuel is the most widely consumed in the United States? A. petroleum B. natural gas C. peat D. coal

Why is the use of natural gas as a full becoming more common

A swimming-pool worker wants the pool's pH to be 7.2. She comes by to test the water and finds that the pH is 9.2. What should she do to correct this situation? A. Add water. B. Add base. C. Add acid. D. Do nothing.

What type of rock is sandstone

According to the Br? nsted-Lowry theory, water A. acts as a base when it accepts a hydrogen ion. B. can be neither an acid nor a base. C. can act as an acid by accepting hydrogen ions. D. can accept but not donate hydrogen ions.