#1
What is the chemical formula for the sulfate ion?
SO4^2-
ExplanationSulfate ion has a formula of SO4 with a 2- charge.
#2
What is the charge of the ammonium ion?
+1
ExplanationAmmonium ion carries a +1 charge.
#3
Which polyatomic ion contains four oxygen atoms?
Perchlorate (ClO4-)
ExplanationPerchlorate ion (ClO4-) contains four oxygen atoms.
#4
What is the charge of the sulfate ion?
-2
ExplanationSulfate ion carries a -2 charge.
#5
What is the charge of the nitrate ion?
-1
ExplanationNitrate ion carries a -1 charge.
#6
Which of the following polyatomic ions has a -1 charge?
Nitrate (NO3-)
ExplanationNitrate ion (NO3-) carries a -1 charge.
#7
What is the chemical formula for the hydroxide ion?
OH^-
ExplanationHydroxide ion has a formula of OH with a - charge.
#8
Which polyatomic ion contains three oxygen atoms?
Phosphate (PO4^3-)
ExplanationPhosphate ion (PO4^3-) contains three oxygen atoms.
#9
What is the charge of the carbonate ion?
-2
ExplanationCarbonate ion carries a -2 charge.
#10
What is the chemical formula for the dichromate ion?
Cr2O7^2-
ExplanationDichromate ion has a formula of Cr2O7 with a 2- charge.
#11
What is the charge of the perchlorate ion?
-1
ExplanationPerchlorate ion carries a -1 charge.
#12
Which polyatomic ion contains two oxygen atoms?
Sulfite (SO3^2-)
ExplanationSulfite ion (SO3^2-) contains two oxygen atoms.
#13
How many oxygen atoms are there in the nitrite ion (NO2^-)?
2
ExplanationNitrite ion (NO2^-) contains 2 oxygen atoms.
#14
What is the chemical formula for the chromate ion?
CrO4^2-
ExplanationChromate ion has a formula of CrO4 with a 2- charge.
#15
How many hydrogen atoms are there in the acetate ion (CH3COO-)?
3
ExplanationAcetate ion (CH3COO-) contains 3 hydrogen atoms.
#16
What is the chemical formula for the permanganate ion?
MnO4^-
ExplanationPermanganate ion has a formula of MnO4 with a - charge.
#17
How many nitrogen atoms are there in the nitrate ion (NO3-)?
3
ExplanationNitrate ion (NO3-) contains 3 nitrogen atoms.
#18
What is the chemical formula for the hydrogen carbonate ion?
HCO3^-
ExplanationHydrogen carbonate ion has a formula of HCO3 with a - charge.
#19
How many oxygen atoms are there in the chlorite ion (ClO2-)?
3
ExplanationChlorite ion (ClO2^-) contains 3 oxygen atoms.