Chemistry Review

Chemistry 1

100

 _______ and _____ reside in the atomic nucleus. 

1. Protons, electrons

2. Electrons, neutrons

3. Protons, neutrons

4. Neutrons, only neutrons

3. Protons and Neutrons

200

 All atoms of a given element have the same _____.

1. Mass

2. Number of protons

3. Number of neutrons

4. Number of electrons and neutrons

5. Density

2. Number of protons

300

 Isotopes are atoms that have the same number of _______ but different number of ______.

1. Protons, electrons

2. Neutrons, protons

3. Protons, neutrons

4. Electrons, protons

5. Neutrons, electrons

3. Protons, neutrons

400

Which has the smallest number of neutrons?

1. Carbon-14

2. Nitrogen-14

3. Oxygen-16

4. Fluorine-19

5. Neon-20

2. Nitrogen-14

500

An atom of the most common isotope of gold, 197 Au, has ____ protons, ____ neutrons, and _____ electrons.

1. 197, 79, 118

2. 118, 79, 39

3. 79, 197, 197

4. 79, 118, 118

5. 79, 118,79

5.         79, 118,79

Chemistry 2

100

 In the periodic table, the rows are called _____ and the columns are called ______.

1. Octaves, groups

2. Staffs, families

3. Periods, groups

4. Rows, families

5. Rows, groups

3.   Periods, groups

200

 The correct name for SrO is _____.

1. Strontium oxide

2. Strontium hydroxide

3. Strontium peroxide

4. Strontium monoxide

5. Strontium dioxide

1. Strontium oxide

300

Which group of elements is most likely to form ions by losing one electron?

1. 1

2. 2

3. 3

4. 17

5. 18

1. 1

400

Of the choices below, which one is not an ionic compound?

1. PCl₅

2. MoCl₆

3. RbCl

4. PbCl₂

5. NaCl

1. PCl₅

500

The charge on the manganese in the salt MnF₃ is ___.

1. +1

2. -1

3. +2

4. -2

5. +3

5.     +3

Chemistry 3

100

Which of the following compounds would you expect to be ionic?

1. H₂O

2. CO₂

3. SrCl₂

4. SO₂

5. H₂S

3. SrCl₂

200

Which formula/ name pair is incorrect?

1. Mn(NO₂)₂     manganese (II) nitrite

2. Mg(NO₃)₂     magnesium nitrate

3. Mn(NO₃)₂     manganese (II) nitrate

4. Mg₃N₂        magnesium nitrite

   5. Mg(MnO₄)₂    magnesium permanganate

4. Mg₃N₂        magnesium nitrite

300

Which one of the following compounds is copper(I) chloride? 

1. CuCl

2. CuCl₂

3. Cu₂Cl

4. Cu₂Cl₃

5. Cu₃Cl₂

1.  CuCl

400

The correct name for CCl₄ is ____.

1. Carbon chloride

2. Monocarbon tetrachloride

3. Carbon perchlorate

4. Carbon tetrachloride

5. Carbon chlorate

4. Carbon tetrachloride

500

Which formula/name pair is incorrect?

1. FeSO₄        iron(II) sulfate

2. Fe₂(SO₃)₃    iron(III) sulfite

3. FeS        iron(II) sulfide

4. FeSO₃        iron(II) sulfite

    5. Fe₂(SO₄)₃    iron(III) sulfide

5. Fe₂(SO₄)₃    iron(III) sulfide

Chemistry 4

100

When the following equation is balanced, the coefficients are ___.

Al(NO₃)₃ + Na₂S → Al₂S₃ + NaNO₃

1. 2, 3, 1, 6

2. 2, 1, 3, 2

3. 1, 1, 1, 1

4. 4, 6, 3, 2

5. 2, 3, 2, 3

1.          2, 3, 1, 6

200

When the following equation is balanced, the coefficient of Al is ___.

Al + H₂O → Al(OH)₃ + H₂

1. 1

2. 2

3. 3

4. 5

5. 4

2.      2

300

The formula of nitrobenzene is C₆H₅NO₂. What is the molar mass?

1.      107.11

2.      43.03

3.      109.10

4.      123.11

5.      3.06

4.       123.11

400

How many molecules of CH₄ are in 48.2 g of this compound?

1.     5.00  x 10^-24

2.     3.00

3.     2.90 x 10²⁵

4.     1.81 x 10²⁴

5.     4.00

4.       1.81 x 10²⁴

500

What is the molar mass of C₁₄H₁₈N₂O₅? ___ g/mol

1. 24

2. 156

3. 294

4. 43

5. 39

3.     294

Chemistry 5

100

Write the balanced formula equation. 

Sodium combines with chlorine to produce sodium chloride.

 2Na +Cl₂ = 2NaCl

200

Write the balanced formula equation. 

 Aluminum reacts with oxygen to produce aluminum oxide.

4Al + 3O₂ =2Al₂O₃

300

Write the balanced formula equation.

 Sodium carbonate decomposes to produce sodium oxide and carbon dioxide

Na₂CO₃ =Na₂O+CO₂

400

What is the chemical symbol for Mercury?

Hg

500

What is the chemical symbol for Gold?

Au