When NaOH is added to water, the hydroxide concentration increases. What can you conclude about NaOH?

A. It releases protons.

B. It is a base.

C. It has a low pH.

D. It donates H + ions.

How are theories supported in the scientific community? They are treated as hypotheses. They are tested by many scientists. They are unproven but accepted as fact. They are rarely altered after publication.

C 2000 pascals D. 200pascals 11. Which of the following is a second class lever? A Crowbar B. secateurs c. bottle opener D. tongs Workdone is - A force/distance B. force x distance C. force divided by di

This includes all the means for communicating information to the general public. a. wire services c. newspapers b. mass media d. telecommunications

The sun the moon and the stars appear to move from east to west across the sky because earth rotates from blank to blank

Would a limestone building weather more rapidly in Homer, Alaska, or in Honolulu, Hawaii? Explain your reasoning.

When a siren is approaching you, how does the wavelength of the waves reaching you compare to the actual wavelength that the siren emits?

In a harbor, you can see sea waves traveling around the edges of small stationary boats. Why does this happen?

Correct unit of speed

Technician A says that for best results, loosen the fastener immediately after spraying it with penetrating oil. Technician B says that rusted fasteners may be loosened by tapping with a hammer. Which technician is correct? a. technician A only b.

A roller coaster track is 3,000 meters long. It takes 100 seconds to travel once around the roller coaster. Is the velocity constant throughout the trip? Explain.