Unit 12 Assignment- Physics Test A?

S

Shauna

New member
Please help me. Thanks guys!!!

1.A chemical formula __________.
A.tells you the composition of the compound
B.tells you the exact size of the compound
C.is only used to describe some types of atoms
D.None of the above
2.Chemists around the world __________.
A.use different methods to write chemical formulas
B.use the same system to write chemical formulas
C.do not need to write chemical formulas
D.follow Drummond’s formula writing techniques
3.A chemical formula contains __________.
A.numbers only
B.entire element names
C.numbers and element symbols
D.element masses
4.A subscript in a chemical formula indicates the __________.
A.number of protons
B.number of atoms
C.number of electrons
D.amount of mass
5.A chemical formula contains information that is __________.
A.based on a set of established rules
B.not important in explaining the ratio of ions
C.only used by scientists in the United States
D.All of the above
6.What is the formula for aluminum oxide?
A.AlO
B.Al2O2
C.Al3O2
D.Al2O3
7.What is the formula for sodium hydroxide?
A.NaO
B.Na(OH)2
C.NaOH
D.NaOH2
8.What is the formula for potassium nitrate?
A.K3NO
B.KNO
C.KNO3
D.K2NO3
9.What is the formula for sodium sulfate?
A.Na2SO4
B.NaSO2
C.Na2S
D.NaSO4
10.What is the formula for iron (II) oxide?
A.FeO
B.Fe3O
C.Fe3O2
D.Fe2O3
11.What is the formula for carbon tetrachloride?
A.C4Cl4
B.CCl
C.CCl4
D.Cl4C
12.What is the formula for sulfur dioxide?
A.S2O
B.S2O2
C.SO
D.SO2
13.What is the formula for dihydrogen monoxide?
A.H2O
B.H2O2
C.HO
D.HO2
14.What is the formula for carbon monoxide?
A.C4O
B.C2O4
C.CO
D.CO2
15.What is the formula for carbon dioxide?
A.C4O
B.C4O2
C.CO
D.CO2
16.What is the name of Fe2O3?
A.Iron oxide
B.Tri-iron dioxide
C.Iron (II) oxide
D.Iron (III) oxide
17.What is the name of KOH?
A.Potassium hydroxide
B.Potassium oxygen hydrogen
C.Potassium oxide
D.Monopotassium monohydroxide
18.What is the name of Ca(OH)2 ?
A.Calcium (II) hydroxide
B.Calcium hydroxide
C.Calcium dihydroxide
D.Calcium oxygen dihydride
19.What is the name of CaO?
A.Calcium oxygen
B.Calcium monoxide
C.Calcium oxide
D.Monocalcium monoxide
20.What is the name of PCl5?
A.Phosphorus chloride
B.Monophosphorus pentachloride
C.Phosphorus pentachloride
D.Pentaphosphorus chloride
21.What is the name of CH4?
A.Carbon (I) hydride
B.Monocarbon tetrahydride
C.Carbon tetrahydride
D.Carbon hydride
22.What is the name of K2O5?
A.Dipotassium pentaoxide
B.Potassium oxidec.
C.Potassium (II) oxide
D.Potassium (V) oxide
23.What is the name of SiCl4?
A.Silicon chloride
B.Silicon tetrachloride
C.Silicon (IV) chloride
D.Silicon chlorine
24.What is the name of H2O?
A.Hydrogen oxide
B.Hydrogen monoxide
C.Dihydrogen oxide
D.Dihydrogen monoxide
25.What is the name of N2O4?
A.Dinitrogen oxide
B.Dinitrogen tetraoxide
C.Nitrogen oxide
D.Nitrogen tetraoxide
 
Back
Top