7. Which of these substances might be useful in neutralizing a lake damaged by acid rain?
(A) H2SO4
(B) CH3COOH
(C) CaCl,
(D) Ca(OH)2

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?