Nuclear physicists have discovered over 100 different particles that compose the nucleus of an atom. From a chemistry perspective, the nucleus is best described as being composed of
A) protons and neutrons packed tightly into a very small volume.
B) protons and electrons packed tightly into a very small volume.
C) neutrons and electrons packed tightly into a very small volume.
D) protons, neutrons and electrons packed tightly into a very small volume.
Question 2
Acidic solutions ________.
A) have a higher concentration of hydronium ions than hydroxide ions
B) have a lower concentration of hydronium ions than hydroxide ions
C) turn red litmus paper to blue
D) colorize phenolphthalein solutions