Free Printable Fall ACP Review

1.

Which statement explains why metals conduct electricity?

a)

Metals have loosely held delocalized electrons.

b)

Metals are hard and have high melting points.

c)

Metals lose electrons while bonding.

d)

Metals form covalent bonds.

2.

How many atoms are present in 2.50 grams of copper?

a)

$8.9\ X\ 10^{23}$ atoms

b)

$6.02\ X\ 10^{23}$ atoms

c)

$5.92\ X\ 10^{20}$ atoms

d)

$2.37\ X\ 10^{22}$ atoms

3.

Which statement describes the arrangement of atoms within a metallic lattice?

a)

Cations and valence electrons are in fixed positions.

b)

Cations and valence electrons move freely throughout the lattice.

c)

Cations move freely throughout the lattice, but valence electrons are in fixed positions.

d)

Cations are in fixed positions, but valence electrons move freely throughout the lattice.

4.

The unbalanced equation for the reaction of hydrochloric acid with magnesium hydroxide is shown.

When the equation is balanced, what is the coefficient for H₂O?

a)

1

b)

2

c)

3

d)

4

5.

How many moles of chromium (Cr) are present in a 156 gram sample?

a)

$6.02\ X\ 10^{23}$ moles

b)

$2.01\ X\ 10^{23}$ moles

c)

3.00 moles

d)

1.00 moles

6.

Write the chemical formula of Gallium sulfate?

a)

$Ga_2^{ }\left(SO_4^{ }\right)_3^{ }$

b)

$Ga\left(SO_4^{ }\right)_3^{ }$

c)

$Ga_2^{ }\left(SO_4^{ }\right)$

d)

$Ga\left(SO_4^{ }\right)$

7.

Convert $2.1\ X\ 10^{23}$ atoms of zinc to moles of zinc. Record your answers to 3 significant figures

a)

0.35

b)

0.351

c)

0.3827

d)

0.0488

8.

Which of the following is the name for the compound MgCl₂?

a)

Magnesium chloride

b)

Magnesium chlorine

c)

Monomagnesium dichloride

d)

Magnesium monochloride

9.

Which is an example of an empirical formula?

a)

$H_2^{ }O_2^{ }$

b)

$N_2^{ }O_2^{ }$

c)

$C_3^{ }H_2^{ }$

d)

$B_2^{ }H_6^{ }$

10.

$P_4^{ }O_5\$ What is the name of the molecular compound with the formula shown?

a)

Pentaphosphorus dioxide

b)

Decaphosphorus pentoxide

c)

Tetraphosphorus pentoxide

d)

Diphosphorus monoxide

11.

What is the name of the following compound: CuBr₂

a)

copper bromine

b)

copper bromide

c)

copper (I) bromide

d)

copper (II) bromide

12.

What two things are mixed with a neutralization reaction?

a)

metal and nonmetal

b)

acid (H) and base (OH)

c)

metal and metal

d)

salt and water

13.

What is the percentage by mass of nitrogen (N) in a formula unit of potassium nitrate (KNO₃)?

a)

.75 % O

b)

101.5 % O

c)

13.9 % O

d)

21.6 % O

14.

In writing the chemical equation for a precipitation reaction, what abbreviation of the physical state must appear with the insoluble product on the right side?

a)

(s)

b)

(g)

c)

(l)

d)

(w)

15.

What is the number of atoms in nine grams of Nitrogen (N)?

a)

5.1 atoms N

b)

$3.9\times10^{23}$ atoms N

c)

$3.2\ \times10^{21}$ atoms N

d)

$32.5\ \times\ 10^3$ atoms N

16.

Find the percent composition by mass of nitrogen (N) in sodium nitrate (NaNO₃)?

a)

29.01 % N

b)

45.1 % N

c)

16.5 % N

d)

3.1 % N

17.

Pick 2 correct answers.

a)

Ionic bonds: metal transfers electrons to nonmetal

b)

Ionic bonds: nometals share electrons.

c)

Covalent bonds: nometals share electrons.

d)

Covalent bonds: metal transfers electrons to nonmetal

e)

Covalent bonds: metals shares electrons with other metals

18.

When naming compounds, which is true?

a)

covalent compounds (nm +nm) always require the use of prefixes

b)

ionic compounds (m +nm) require the use of prefixes

19.

Which of the following could form an ionic compound? Check all that apply.

hint: enlarge the picture!

a)

Na⁺ and F^-

b)

S^2- and O^2-

c)

Ca²⁺ and Fe³⁺

d)

Mg²⁺ and Cl^-

20.

Identify the type of chemical reaction

a)

$SiO_2+4HF→SiF_4+2H_2O$

b)

$2NaBr+Cl_2→2NaCl+Br_2$

c)

$Mg(OH)_2+2HCl→MgCl_2+Br_2$

d)

$2AgI+Na_2S→Ag_2S+2NaI$

21.

what type of reaction is this?

Select 2 answers!

a)

b)

c)

Precipitation

d)

e)

Acid-base (neutralization)

22.

what determines the amount of valence electrons (dots) an atom originally has?

a)

The group number

b)

the atomic number

c)

the mass number

d)

the period number

23.

Which of the following is a correct Lewis dot structure for potassium chloride, KCl?

a)

b)

c)

d)

24.

What is the correct drawing for the compound BF₃?

Additionally, select the type of bond this compound is showing.

SELECT 2 answers!

a)

b)

c)

d)

Ionic bond

e)

covalent bond

Fall ACP Review - Units 3 and 4

Total questions: 24

Worksheet time: 14mins

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