{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

You can use the Unit 4 Review Guide to help you study and answer the practice questions.

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1

Which is true about bonding? Select all that apply

Ionic bonds are formed between a metal and an nonmetal

Ionic bonds are formed between 2 or more nonmetals

Ionic bonds are held together by positive and negative electrostatic forces of attraction

A triple bond results from sharing 6 electrons between 2 atoms

Ionic bonds are formed when electrons are transferred froma metal to a nonmetal

A double bond results from sharing 6 electrons between 2 atoms

Ionic bonds result from sharing 2 electrons between 2 different atoms

Covalent bonds are formed between 2 or more nonmetals

Covalent bonds reults from sharing 2 electrons between 2 different atoms

1

Which molecule has a trigonal pyramidal shape?
(Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

SO₃

CH₄

BH₃

PH₃

1

Which is a nonpolar molecule?
(Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

CO

SO₃

NF₃

1

Is it possible for a molecule to have bond dipoles and still be considered nonpolar?

Nokorɛ

Ɛnyɛ ampa

1

If a compound is ionic then...

the electronegativity values between atoms are close together

the electronegativity values between atoms are far apart

1

In the dye chromatography lab, the higher the dye traveled up the paper, the ___soluble the dye was with the _ phase.

less, stationary

less, mobile

more, stationary

more, mobile

1

null

The microscopic behaviors being investigated in this experiment are .

1

Draw a model of how you think the water molecules interact with the penny and with the soap. Will anything change once the soap is added? Why or why not?
You can just sketch the model or describe how'd they interact.

1

Which part of the investigation might be difficult to get a precise measurement?

Counting the number of drops of the penny

Measuring the height of the bubble

Measuring the drops of soap added

Repeating the experiment for 5 trials

1

Note: Volatitity means the ability to vaporize or turn from a liquid into a gas.
How would you group these substances based on the property data given above?

Silica (sand)
Calcium chloride (road salt)
Citric acid (in fruit/sweet and sour foods)
Sodium chloride (table salt)
Sucrose (sugar)
Naphthalene (moth balls)

Ionic
Polar Covalent
Nonpolar Covalent

1

Based on your groupings for the question above, which compounds have the strongest forces of attraction with water, a polar molecule?
Select all that apply

1

The unique properties of substances can be explained by carefully looking at their

1

How many lone pairs are around the central atom for CO₃?

0

1

2

3

1

How many double bonds are in CO₃?

0

1

2

3

1

What is the molecular shape for CO₃_^?

1

Which of the following are considered covalent compounds when they bond together?

C and H

Na and H

Al and F

Ca and P

1

Unit 4 Review Questions

Which is true about bonding? Select all that apply

Which molecule has a trigonal pyramidal shape?
(Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

Which is a nonpolar molecule?
(Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

Is it possible for a molecule to have bond dipoles and still be considered nonpolar?

If a compound is ionic then...

In the dye chromatography lab, the higher the dye traveled up the paper, the ___soluble the dye was with the _ phase.

Draw a model of how you think the water molecules interact with the penny and with the soap. Will anything change once the soap is added? Why or why not?
You can just sketch the model or describe how'd they interact.

Which part of the investigation might be difficult to get a precise measurement?

Note: Volatitity means the ability to vaporize or turn from a liquid into a gas.
How would you group these substances based on the property data given above?

Based on your groupings for the question above, which compounds have the strongest forces of attraction with water, a polar molecule?
Select all that apply

How many lone pairs are around the central atom for CO₃?

How many double bonds are in CO₃?

What is the molecular shape for CO₃_^?

Which of the following are considered covalent compounds when they bond together?

Is vinegar overall more polar or nonpolar? Explain your reasoning.

Which is true about bonding? Select all that apply

Which molecule has a trigonal pyramidal shape?
(Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

Which is a nonpolar molecule?
(Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

Is it possible for a molecule to have bond dipoles and still be considered nonpolar?

If a compound is ionic then...

In the dye chromatography lab, the higher the dye traveled up the paper, the ___soluble the dye was with the _ phase.

Draw a model of how you think the water molecules interact with the penny and with the soap. Will anything change once the soap is added? Why or why not?
You can just sketch the model or describe how'd they interact.

Which part of the investigation might be difficult to get a precise measurement?

Note: Volatitity means the ability to vaporize or turn from a liquid into a gas.
How would you group these substances based on the property data given above?

Based on your groupings for the question above, which compounds have the strongest forces of attraction with water, a polar molecule?
Select all that apply

How many lone pairs are around the central atom for CO₃?

How many double bonds are in CO₃?

What is the molecular shape for CO₃_^?

Which of the following are considered covalent compounds when they bond together?

Is vinegar overall more polar or nonpolar? Explain your reasoning.

Unit 4 Review Questions

Which is true about bonding? Select all that apply

Which molecule has a trigonal pyramidal shape? (Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

Which is a nonpolar molecule? (Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

Is it possible for a molecule to have bond dipoles and still be considered nonpolar?

If a compound is ionic then...

In the dye chromatography lab, the higher the dye traveled up the paper, the ___________________soluble the dye was with the _________________ phase.

Draw a model of how you think the water molecules interact with the penny and with the soap. Will anything change once the soap is added? Why or why not? You can just sketch the model or describe how'd they interact.

Which part of the investigation might be difficult to get a precise measurement?

Note: Volatitity means the ability to vaporize or turn from a liquid into a gas. How would you group these substances based on the property data given above?

Based on your groupings for the question above, which compounds have the strongest forces of attraction with water, a polar molecule? Select all that apply

How many lone pairs are around the central atom for CO3?

How many double bonds are in CO3?

What is the molecular shape for CO3?

Which of the following are considered covalent compounds when they bond together?

Is vinegar overall more polar or nonpolar? Explain your reasoning.

Which is true about bonding? Select all that apply

Which molecule has a trigonal pyramidal shape? (Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

Which is a nonpolar molecule? (Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

Is it possible for a molecule to have bond dipoles and still be considered nonpolar?

If a compound is ionic then...

In the dye chromatography lab, the higher the dye traveled up the paper, the ___________________soluble the dye was with the _________________ phase.

Draw a model of how you think the water molecules interact with the penny and with the soap. Will anything change once the soap is added? Why or why not? You can just sketch the model or describe how'd they interact.

Which part of the investigation might be difficult to get a precise measurement?

Note: Volatitity means the ability to vaporize or turn from a liquid into a gas. How would you group these substances based on the property data given above?

Based on your groupings for the question above, which compounds have the strongest forces of attraction with water, a polar molecule? Select all that apply

How many lone pairs are around the central atom for CO3?

How many double bonds are in CO3?

What is the molecular shape for CO3?

Which of the following are considered covalent compounds when they bond together?

Is vinegar overall more polar or nonpolar? Explain your reasoning.

Which molecule has a trigonal pyramidal shape?
(Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

Which is a nonpolar molecule?
(Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

In the dye chromatography lab, the higher the dye traveled up the paper, the ___soluble the dye was with the _ phase.

Draw a model of how you think the water molecules interact with the penny and with the soap. Will anything change once the soap is added? Why or why not?
You can just sketch the model or describe how'd they interact.

Note: Volatitity means the ability to vaporize or turn from a liquid into a gas.
How would you group these substances based on the property data given above?

Based on your groupings for the question above, which compounds have the strongest forces of attraction with water, a polar molecule?
Select all that apply

How many lone pairs are around the central atom for CO₃?

How many double bonds are in CO₃?

What is the molecular shape for CO₃_^?

Which molecule has a trigonal pyramidal shape?
(Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

Which is a nonpolar molecule?
(Hint: Covalently bond the molecules using the 5 steps and then the VSEPR shape chart to figure this out)

In the dye chromatography lab, the higher the dye traveled up the paper, the ___soluble the dye was with the _ phase.

Draw a model of how you think the water molecules interact with the penny and with the soap. Will anything change once the soap is added? Why or why not?
You can just sketch the model or describe how'd they interact.

Note: Volatitity means the ability to vaporize or turn from a liquid into a gas.
How would you group these substances based on the property data given above?

Based on your groupings for the question above, which compounds have the strongest forces of attraction with water, a polar molecule?
Select all that apply

How many lone pairs are around the central atom for CO₃?

How many double bonds are in CO₃?

What is the molecular shape for CO₃_^?