What are the only elements that make up organic compounds?
Question 2 options:

A)

Carbon, hydrogen, oxygen, and nitrogen

B)

Germanium, hydrogen, potassium, and nitrogen

C)

Carbon, hydrogen, lithium, and silicon

D)

Silicon, hydrogen, carbon, and nitrogen

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)