Question

its time for the unit exam. this is your opportunity to show how much you have gained fr
if you dont feel ready, you may want to stop and clarify anything you do not understand. it
over any notes you have taken and review the key terms.
good luck!
note: to answer some of the questions, it may help to reference a periodic table
what is the chemical formula for ammonium sulfate?
(nh4)2so4
nh42so4
nh4(so4)2
nh4so4

Explanation:

Ammonium sulfate is composed of ammonium ions (\(NH_4^+\)) and sulfate ions (\(SO_4^{2 - }\)). To balance the charges, two ammonium ions (\(+1\) each) are needed for one sulfate ion (\(- 2\)). So the formula is \((NH_4)_2SO_4\). The other options have incorrect ion - to - ion ratios or incorrect placement of parentheses.

Answer:

\((NH_4)_2SO_4\)