Most of the mass of an atom can be found in the
a. nucleus.
b. atomic zone.
c. electron shells.
d. electron cloud.

All of the following are homogeneous mixtures except a) sugar dissolved in water. b) orange juice. c) coffee with cream. d) household vinegar. e) apple juice

In a ball-and-stick molecular model, what do the sticks represent?

Chromium(iii) sulfate is a transition metal compound containing the metal chromium and the polyatomic ion sulfate. the oxidation state of chromium in this compound is , and the chemical formula of the compound is ( ) . reset next