Answer and Explanation:
(a)
: its chemical name is sodium sulfate in which sodium is present as
and sulfate is present as 
(b)
: Its chemical name is copper nitrate which is a inorganic compound which is mostly crystalline in nature
(c)
: Its chemical name is iron carbonate or ferric carbonate
Choice 2 possibly, not positive
Answer:
B
Explanation:
Because element is made up of only one type of atoms and figure b show only one type of atoms.
Answer:
the answer is 119.0023 grams