Unit 5 Test Review

Presentation

•

Chemistry

•

10th - 12th Grade

•

Hard

•

NGSS

HS-PS1-3, HS-PS1-2, HS-PS1-1

Standards-aligned

Ashley Brady

Used 6+ times

FREE Resource

16 Slides • 36 Questions

Unit 5 Test Review

Unit 5 Test Tuesday December 8

Multiple Choice

Which compound has hydrogen bonding?

H₂S

CH₄

NH₃

Multiple Choice

Which statement explains why Br₂is a liquid at STP and I₂ is a solid at STP?

Molecules of Br₂ are polar, and molecules of I₂are nonpolar

Molecules of Br₂ are nonpolar, and molecules of I₂ are polar

Molecules of Br₂ have stronger intermolecular forces than molecules of I₂.

Molecules of I₂ have stronger intermolecular forces than molecules of Br₂.

Multiple Choice

London forces are stronger in heavier atoms or molecules, and weaker in lighter atoms or molecules. Which of these has the strongest London forces?

F₂

Br₂

I₂

Cl₂

Multiple Choice

What explains the very high melting and boiling point of water

Strong dipole-dipole bonds between water molecules

Strong hydrogen bonds between water molecules

Dispersion forces which are present in all molecules

Asymmetrical shape of the polar bonds.

Multiple Choice

Which substance has the weakest intermolecular forces?

Substance A, boiling point of 75 °C

Substance B, boiling point of 105 °C

Substance C, boiling point of 25 °C

Substance d, boiling point of 45 °C

Multiple Choice

What is the name of this compound:

MgO

Magnesium (II) oxide

Magnesium oxide

Magnesium monoxide

Magnesium (I) oxide

Multiple Choice

What is the formula for the following compound:

iron (III) oxide

FeO₃

Fe₃O₂

FeO

Fe₂O₃

Multiple Choice

What is the formula for this compound:

zinc (II) sulfide

Zn₂S

ZnS

Zn₂S₂

ZnS₂

Multiple Choice

What is the formula for this compound:

tetrasulfur dinitride

S₂N₄

S₄N₂

Multiple Choice

What is the name of this compound:

N₂O₃

Dinitrogen trioxide

Nitrogen oxide

Nitroxide

Nitrogen (III) oxide (II)

Multiple Choice

Which is the correct Lewis structure for carbon dioxide?

Multiple Choice

What is the correct Lewis structure for NH₃?

Multiple Choice

The electronegativity difference in the bonds of CCl4 (carbon tetrachloride) is:

0.4

0.5

9.5

5.5

Multiple Choice

In a polar covalent bond, electrons are shared ___________.

equally

unequally

between non-metals with similar electronegativities

between a metal and a non-metal

Multiple Choice

The polarity of a bond is determined by...

The sum of the electronegativities of the two atoms

The difference in the electronegativities of the two atoms

The charges of the atoms

None of the Above

Multiple Select

The two (2) factors that determine if a molecule is Polar or Non-polar:

The atoms's ionization energy

the type of atoms in the molecule

The atom's oxidation number

the symmetry of the molecule

Multiple Choice

Are the bonds in this molecule polar or nonpolar?

Non-polar

Polar

Multiple Choice

Is this molecule polar or non-polar?

Non-polar

Polar

Multiple Choice

CO₂ has polar bonds but is a NON POLAR molecule. Why?

it has an asymmetrical shape

bond polarity or dipole moment between C and O atoms cancel

there is net dipole moment between C and O atoms in molecule

bond polarity does not exist between C⁺ and O^- atoms

Multiple Choice

A diatomic molecule like O₂ is always _____ because electrons are shared _____

nonpolar; unequally

polar; equally

nonpolar; equally

polar; unequally

Multiple Select

Which of the following is true about Covalent (non-polar) bonds? (select ALL true options)

High melting point

Low melting point

Can dissolve in water

Cannot dissolve in water

Can conduct electricity

Multiple Choice

What two types of atoms make a covalent bond?

2 Nonmetals

1 Nonmetal and 1 Metal

2 Metals

2 Noble Gases

Multiple Choice

Which of the following describes covalent bonds?

Bonds form because of opposite charges

electrons are shared to fill outer electron shells

Electrons are transferred between atoms

Covalent bonds are magical

Multiple Choice

Have a low m.p. (< 200°C)

ionic compounds

covalent compounds

Multiple Choice

Some are solids, some are liquids, and some are gases at room temperature.

ionic compounds

covalent compounds

Multiple Choice

The following properties are all characteristics of ionic compounds EXCEPT

high melting and boiling points

soft

crystal lattice structure

conduct electricity when dissolved in water

Multiple Choice

Is the following compound ionic or covalent?

A material with a high melting point

Ionic

Covalent

Multiple Select

Which of the following is true about Ionic Bonds? (select ALL TRUE options)

High melting point

Low melting point

Can dissolve in water

Cannot dissolve in water

Can conduct electricity

Multiple Choice

What is ionic bonding?

Bonding that is the result of two elements sharing electrons

Bonding involving only one atom

Bonding that is the result of an exchange of electrons between a metal and a nonmetal

Bonding between two metals

Multiple Choice

Why do metals conduct

They are shiny

The electrons are held tightly within the lattice

The electrons are delocalised and able to move

The electrons are shared between two metal ions

Multiple Choice

What does malleable mean?

able to be shaped

will break easily

can be used for wire

is shiny

Multiple Choice

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.

Multiple Choice

Why is diamond strong?

It's made of carbon

It doesn't conduct electricity

It forms 4 strong covalent bonds

So it can cut glass

Multiple Choice

Why is graphite so soft?

A. The atoms are arranged in hexagons in layers that are held together strongly

B. The atoms are arranged in hexagons in layers that are held together weakly

C. Carbon is strongly bonded to 3 other carbon atoms.

D. Carbon is weakly bonded to 3 other carbon atoms.

Multiple Choice

Which of the following is an alloy?

stainless steel

chromium

nickel

lead

Multiple Choice

Alloy is a ...

A chemical compound with combination between metal and non-metal

A salt contain of two or more elements where the main element is non-metal

Mixture of two or more elements where the main element is metal

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Unit 5 Test Review

Unit 5 Test Tuesday December 8

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