Chemistry 2 exam
Ammonium dichromate is a bright orange, crystalline solid. When heated to a high temperature, one of the decomposition products is a fluffy, dark green solid, called chromium(III) oxide and other materials. What are their respective formulas?
(NH4)2Cr2O7, and Cr2O3
What is the charge on the tin ion in the compound SnSO4
+2
What is the charge on the iron ion in the compound Fe2O3?
+3
What is the charge of phosphide ions?
-3
Which one of the following is NOT the chemical formula for an acid?
H2
Which one of the following does not exist as a diatomic in its standard state?
Phosphorus
Which one of the following is not a match
Zn(NO3)2 and zinc nitrite
Which one of the following is not a match?
Zn(NO3)2 and zinc nitrite
What is the chemical name for B2O3
boron (III) oxide
What is the chemical name for B2O3?
diboron trioxide
Which one of the following is the chemical name for NiCO3
nickel (II) carbonate
Which one of the following is the chemical name for NiCO3?
nickel (II) carbonate
Which one of the following common laboratory compounds is named incorrectly?
perchloric acid, HClO4
Which one of the following common laboratory compounds is named incorrectly
silver nitrate, Ag(NO3)3
How many potassium ions are required to neutralize a nitride ion?
3.0
What is the chemical formula for the molecular compound tetraboron hexoxide?
B4O6
What is chemical name for CuO?
Copper (II) oxide
What is the chemical name for the compound N2O4?
Dinitrogen tetraoxide
Which is the chemical formula for nitrous acid
HNO2
Which is the chemical formula for nitrous acid?
HNO2
What is the chemical name for MnSO3
Manganese (III) sulfite
The chemical name for laughing gas, which can be used as an anesthetic, is dinitrogen monoxide. The chemical formula for laughing gas is
N2O
Which of the below formula units is correct for the compound sodium oxide?
Na2O
Which of the following is incorrectly labelled?
PO42-, phosphite ion
What is the chemical formula for thallium(III) sulfide?
Tl2S3
