Protons have about the same mass as:

A. electrons

B. neutrons

C. plasma particles

What happens inside an atom that causes it to give off light?

The volume of a pond being studied for the effects of acid rain is 35 kiloliters (kL). There are 1,000 liters (L) in 1 kL and 1 * 10^6 microliters (mL) in 1 L. What is the volume of this pond in microliters?

How do you find theoretical yield?

1. You wish to make a 0.325 M hydrochloric acid solution from a stock solution of 3.00 M hydrochloric acid. How much concentrated acid must you add to obtain a total volume of 50.0 mL of the dilute solution? in ml 2. In the laboratory you dilute 4.

Which of these is one way that mechanical waves differ from electromagnetic waves? Question 4 options: Mechanical waves require energy and electromagnetic waves do not. Mechanical waves require a medium and electromagnetic waves do not.

Solution that contains high percentage of the base in solution are called?

Which statement about scientific explanations is true? A. Scientific explanations are open to change. B. Scientific explanations are never reliable. C. Scientific explanations are always correct. D. Scientific explanations are rarely proven wrong.

Which of the following might a chemist choose to study? A. Glacier movement in Alaska B. Better ways to recycle plastics C. The effects of hurricanes on turtle populations D. The vibrations in bridges caused by big trucks

How many electrons would the element calcium need to be electrically neutral?

How to convert metric units?