Explanation:
Density of object = gram/volume
= 100 g/ 5 cm³
= 20 g/cm³
D:
When electrons are gained, the charge of the atom decreases.
When you are given an atom with a charge, the oxidation of that atom is the charge. So by going from a Cr^3+ (Oxidation Number = 3) to a Cr^2+ (Oxidation Number = 2), the Oxidation Number thus decreases.
4 get of helium is 1 mole
Answer:
snow storm and a blizzard
Explanation:
