_______ and _____ reside in the atomic nucleus.
Protons, electrons
Electrons, neutrons
Protons, neutrons
Neutrons, only neutrons
3. Protons and Neutrons
In the periodic table, the rows are called _____ and the columns are called ______.
Octaves, groups
Staffs, families
Periods, groups
Rows, families
Rows, groups
3. Periods, groups
Which of the following compounds would you expect to be ionic?
H2O
CO2
SrCl2
SO2
5. H2S
3. SrCl2
When the following equation is balanced, the coefficients are ___.
Al(NO3)3 + Na2S → Al2S3 + NaNO3
2, 3, 1, 6
2, 1, 3, 2
1, 1, 1, 1
4, 6, 3, 2
2, 3, 2, 3
1. 2, 3, 1, 6
Write the balanced formula equation.
Sodium combines with chlorine to produce sodium chloride.
2Na +Cl2 = 2NaCl
All atoms of a given element have the same _____.
Mass
Number of protons
Number of neutrons
Number of electrons and neutrons
Density
2. Number of protons
The correct name for SrO is _____.
Strontium oxide
Strontium hydroxide
Strontium peroxide
Strontium monoxide
Strontium dioxide
1. Strontium oxide
Which formula/ name pair is incorrect?
Mn(NO2)2 manganese (II) nitrite
Mg(NO3)2 magnesium nitrate
Mn(NO3)2 manganese (II) nitrate
Mg3N2 magnesium nitrite
5. Mg(MnO4)2 magnesium permanganate
4. Mg3N2 magnesium nitrite
When the following equation is balanced, the coefficient of Al is ___.
Al + H2O → Al(OH)3 + H2
1
2
3
5
4
2. 2
Write the balanced formula equation.
Aluminum reacts with oxygen to produce aluminum oxide.
4Al + 3O2 =2Al2O3
Isotopes are atoms that have the same number of _______ but different number of ______.
Protons, electrons
Neutrons, protons
Protons, neutrons
Electrons, protons
Neutrons, electrons
3. Protons, neutrons
Which group of elements is most likely to form ions by losing one electron?
1
2
17
18
1. 1
Which one of the following compounds is copper(I) chloride?
CuCl
CuCl2
Cu2Cl
Cu2Cl3
5. Cu3Cl2
1. CuCl
The formula of nitrobenzene is C6H5NO2. What is the molar mass?
107.11
43.03
109.10
123.11
3.06
4. 123.11
Write the balanced formula equation.
Sodium carbonate decomposes to produce sodium oxide and carbon dioxide
Na2CO3 =Na2O+CO2
Which has the smallest number of neutrons?
Carbon-14
Nitrogen-14
Oxygen-16
Fluorine-19
Neon-20
2. Nitrogen-14
Of the choices below, which one is not an ionic compound?
PCl5
MoCl6
RbCl
PbCl2
NaCl
1. PCl5
The correct name for CCl4 is ____.
Carbon chloride
Monocarbon tetrachloride
Carbon perchlorate
Carbon tetrachloride
Carbon chlorate
4. Carbon tetrachloride
How many molecules of CH4 are in 48.2 g of this compound?
5.00 x 10-24
3.00
2.90 x 1025
1.81 x 1024
4.00
4. 1.81 x 1024
What is the chemical symbol for Mercury?
Hg
An atom of the most common isotope of gold, 197 Au, has ____ protons, ____ neutrons, and _____ electrons.
197, 79, 118
118, 79, 39
79, 197, 197
79, 118, 118
79, 118,79
5. 79, 118,79
The charge on the manganese in the salt MnF3 is ___.
+1
-1
+2
-2
+3
5. +3
Which formula/name pair is incorrect?
FeSO4 iron(II) sulfate
Fe2(SO3)3 iron(III) sulfite
FeS iron(II) sulfide
FeSO3 iron(II) sulfite
5. Fe2(SO4)3 iron(III) sulfide
5. Fe2(SO4)3 iron(III) sulfide
What is the molar mass of C14H18N2O5? ___ g/mol
24
156
294
43
39
3. 294
What is the chemical symbol for Gold?
Au