Free Printable UNIT 4: Chemical Bonding & Nomenclature

Worksheets

UNIT 4: Chemical Bonding & Nomenclature

Total questions: 55

Worksheet time: 56mins

Name

Class

Date

Which of the following is NOT a property of ionic compounds?

They conduct electricity when molten

They conduct electricity when in solution

They have high boiling points

They are insoluble in water

A(n) _________ is an ion with a positive (+) charge.

anion

cation

ion

solute

Magnesium bromide is an ionic compound with the chemical formula MgBr₂. What does the "2" tell you?

There are 2 bromide ions for every magnesium ion

Bromide has a 2- charge

Bromide has a 2+ charge

There are 2 magnesium ions to every bromide ion

In the chemical formula for an ionic compound, which item is written first?

positive ion

negative ion

subscript

the female

Elements in Group 1 lose one electron to form ions with a _________________ charge.

A charged particle that has gained at least one electron is called a(n) _____.

Anion

Cation

Anonion

chemistry cat

What is the formula of Sodium oxide?

Na2O

NaO₂

Na₂O₂

Na₂O

A Nitrogen molecule (N2) has one triple bond. How many electrons do the nitrogen atoms share?

1
1

How do covalent bonds form?

Donating & receiving valence e- between atoms.

Opposite slight charges attract each other between compounds.

Scientists are still not sure how they form.

Sharing valence e- between atoms.

10.

Which of the following is NOT formed by a covalent bond?

K₂S

H₂O

I₂

CO₂

11.

What do we call a covalent bond where electrons are shared UNEVENLY or UNEQUALLY?

Ionic

Polar Covalent

Nonpolar Covalent

Van der Waals Force

12.

What type of bond is shown in this image?

Ionic

Polar Covalent

Nonpolar Covalent

London dispersion

13.

A mixture of two or more metals is called:

mixture

solution

compound

alloy

14.

What is the basis of a metallic bond?

the attraction of neutral metal atoms.

the attraction between protons and neutrons.

the attraction between positive metal ions and interlocking electrons.

the attraction between positive metal ions and free floating electrons.

15.

The name of Mg₃N₂ is

manganese nitride

magnesium nitride

magnesium (III) nitride

trimagnesium dinitride

16.

When adding a subscript to a polyatomic ion, you should...

multiply any subscripts on the polyatomic ion by the subscript you are adding

put parentheses around the polyatomic ion before adding a subscript

write the new subscript next to any subscripts on the polyatomic ion

put the polyatomic ion in square brackets before adding the subscript

17.

What is the correct formula for plumbic oxide?

PbO

Pb₄O₂

PbO₂

Pb₂O₄

18.

What is the formula for calcium carbonate?

Ca₃CO₂

CaCO₂

CaCO₃

Ca₂(CO₃)₂

19.

What is the FORMULA for ammonium sulfide?

(NH₄)₂S

NH₄S

(NH₄)₂S₄

NH₂S

20.

What is the formula for plumbous phosphate?

Pb₂(PO₃)₄

Pb₃(PO₄)₂

Pb₂PO₄

Pb₃P

21.

The name of P₄S₁₀ is

phosphorous sulfide

phosphorus sulfide

tetraphosphorus decasulfide

phosphorus (X) sulfide

22.

The chemical formula of sulfur hexabromide is

SBr₆

S₆Br

S(VI)Br

S6Br

23.

What is the formula for dichlorine heptaoxide?

Cl₂O₅

Cl₇O₂

Cl₂O₆

Cl₂O₇

24.

The name of SO₃ compound is

sulfate

sulfur oxide

sulfur trioxide

monosulfur trioxide

25.

If you have an oxyacid and it contains an -ate polyatomic ion, then acid's ending will change to _____.

-ic

-ous

-ite

26.

If you have an oxyacid and it contains an -ite polyatomic ion, then acid's ending will change to _____.

-ic

-ous

hydro-root-ic acid

-ate

27.

Is the formula for hydrosufuric acid, H₂SO₄? If not, what would the formula be?

It is correct

Is not. It should be HSO

Is not. It should be HS

Is not. It should be H₂S

28.

bromic acid

HBr

H₂Br

HBrO₃

HBrO₄

29.

carbonic acid

H₂CO₃

H₂CrO₄

H₂C₂O₄

HCO₃

30.

Name the acid: H₂SO₃

Sulfurous Acid

Sulfuric Acid

Hydrosulfuric Acid

Hydrosulfurous Acid

31.

Choose the correct shape for this molecule:

Trigonal planar

Trigonal pyramidal

Bent

Linear

32.

Choose the correct shape for this molecule:

Bent

Trigonal pyramidal

Trigonal planar

Linear

33.

Choose the correct shape for this molecule:

linear

Trigonal pyramidal

Bent

Tetrahedral

34.

Choose the correct shape for this molecule:

Bent

Linear

Tetrahedral

Trigonal pyramidal

35.

According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?

Pairs of valence electrons

Inner shell electrons

Mobile Electrons

Electrons closest to the nucleus

36.

VSEPR stands for ________ theory.

Valence Structure of Electron Pyramids and Regression

Varied Structures of Electrons Paired and Replaced

Varied Shell Energy of Protons and Radiation

Valence Shell Electron Pair Repulsion

37.

Will this molecule be polar or nonpolar? soluble or insoluble?

polar

nonpolar

soluble

insoluble

38.

Will this molecule be polar or nonpolar? Soluble or insoluble?

polar

nonpolar

insoluble

soluble

39.

Which force is the strongest?

Ionic

Hydrogen Bonding

Dipole-dipole

London Dispersion force

40.

What type of intermolecular force is the result of temporary uneven distribution of electrons around molecules that result in momentary dipoles?

dipole-dipole

molecule-ion

London dispersion

hydrogen bonds

41.

Type of intermolecular force present in HF.

permanent dipole dipole

London dispersion forces

H-bond

ionic

42.

What is the mass of 5.76 moles of sodium phosphate?

164 g

944 g

984 g

820 g

43.

Which list of number for the atoms in magnesium nitrate is right?

Mg = 1, N = 6, O = 6

Mg = 1, N = 6, O = 2

Mg = 2, N = 2, O = 6

Mg = 1, N = 2, O = 6

44.

What is the mass of 1.20 moles of iridium III iodide?

570 g

690 g

688 g

957 g

45.

Find the percent composition of each element in N₂S₂

69.6% N, 30.4%S

15.2% N, 84.8% S

30.4% N, 69.6% S

65.2% N, 34.8% S

46.

What is the empirical formula of a molecule containing 18.7% of Lithium, 16.3% of Carbon and 65.0% of oxygen?

CO₂Li₃

Li₂CO₃

Li₃CO₂

LiCO₅

47.

What is the molecular formula if the empirical formula is C₂H₅ and the molecular molar mass is 58.14 g/mol?

C₂H₅

C₄H₁₀

C₁H_2.5

C₄H₈

48.

How many moles are in 987g of radium hydroxide?

38.0 moles

3.00 moles

3.80 moles

2.60 moles

49.

Name the following ionic compound: MgSO₄*7H₂O

magnesium sulfate * hexahydarte

magnesium sulfate *hexahydarte

magnesium sulfate heptahydrate

magnesium sulfate heptahydronium

50.

Calculate the percent of water in ferrous acetate tetrahydrate.

38.5%

29.2%

41.4%

20.7%

51.

A compound contains 15 g of C and 177 g of Cl. What is the empirical formula for this compound.

CCl₃

C₄Cl

CCl₄

CCl

52.

What is the molecular formula if the empirical formula is CH₂O and the molecular molar mass is 180.18?

CH₂O

C₂H₄O₂

C₄H₈O₄

C₆H₁₂O₆

53.

A 15.67 g sample of a hydrate of magnesium carbonate was heated to drive off the water. The mass was reduced to 7.58 g. What is the formula of the hydrate?

MgCO₃ · 5H₂O

MgCO₃ · 4H₂O

MgCO₃ · 6H₂O

MgCO₃ · 1H₂O

54.

Name the following ionic compound: MgSO₄·7H₂O

magnesium sulfate * hexahydarte

magnesium sulfate hexahydarte

magnesium sulfate heptahydrate

magnesium sulfate* heptahydrate

55.

Calculate the percent water in strontium chloride hexahydrate

6.76%

59.45%

68.21%

40.55%

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UNIT 4: Chemical Bonding & Nomenclature

Total questions: 55

Worksheet time: 56mins

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