Free Printable DA 3 Review

1.

How many electrons are present in a Pb4+ ion?

a)

4

b)

78

c)

82

d)

86

2.

[TEST QUESTION: DRAG-and-DROP: Bonding and intermolecular forces directly impact the physical properties of materials. What type of solid is described in each statement? Move ONE answer to each box]

Which one is typically soft and has low melting points?

a)

Ionic

b)

Metallic

c)

Molecular

d)

Covalent network

3.

[TEST QUESTION: DRAG-and-DROP: Bonding and intermolecular forces directly impact the physical properties of materials. What type of solid is described in each statement? Move ONE answer to each box]

Which type has charges present and high melting points?

a)

Metallic

b)

Ionic

c)

Molecular

d)

Covalent network

4.

[TEST QUESTION: DRAG-and-DROP: Bonding and intermolecular forces directly impact the physical properties of materials. What type of solid is described in each statement? Move ONE answer to each box]

What type is described as a network of atoms, strong, and typically has the highest of all melting points?

a)

Metallic

b)

Ionic

c)

Molecular

d)

Covalent network

5.

[TEST QUESTION: DRAG-and-DROP: Bonding and intermolecular forces directly impact the physical properties of materials. What type of solid is described in each statement? Move ONE answer to each box]

Which type has properties that vary widely and tends to be conductive and malleable?

a)

Metallic

b)

Ionic

c)

Molecular

d)

Covalent network

6.

Calculate the molar mass of (NH₄)₂C₂O₄.

a)

100.00 g/mol

b)

124.10 g/mol

c)

240.78 g/mol

d)

316.20 g/mol

7.

What is the total number of atoms of all the elements in 2.50 moles of Al₂(SO₄)₃?

a)

1.02 x 10²⁴ atoms

b)

1.51 x 10²⁴ atoms

c)

2.56 x 10²⁵ atoms

d)

5.20 x 10²⁵ atoms

8.

Ca₃(PO₄)₂ has a molar mass of 310.174 g/mol. Determine the percent composition of phosphorus in Ca₃(PO₄)₂ to the hundredth place. [TEXT ENTRY on DA]

a)

19.97%

b)

15.23%

c)

25.50%

d)

10.75%

9.

How many molecules are there in one mole of Barium chloride?

a)

1.50 x 10^23

b)

6.02 x 10^23

c)

1.20 x 10^24

d)

2.40 x 10^24

10.

What is the percentage by mass of sodium (Na) in a formula unit of sodium hydrogen carbonate (NaHCO₃)?

a)

44.2%

b)

37.7%

c)

27.4%

d)

16.7%

11.

For each scenario, determine the impact on the solubility of the substance by indicating whether it will increase, decrease, or have no effect. Select the correct answer in each row. [Match Table Grid]

a)

Stirring a solute slowly - Increase

b)

Breaking a solute into smaller pieces - Decrease

c)

Raising the temperature of a solvent - No Effect

d)

Stirring a solute slowly - Decrease

12.

What is the empirical formula for glucose, C₆H₁₂O₆?

a)

CH₂O

b)

C₂H₄O₂

c)

C₃H₆O₃

d)

C₆H₁₂O₆

13.

Which characteristics make water a polar molecule? Select TWO correct answers.

a)

Water is polar because oxygen has a partial negative charge.

b)

Water is polar because hydrogen atoms have a partial negative charge.

c)

Water is polar because the protons create an overall positive charge.

d)

Water is polar because of its bent shape with oppositely charged ends.

14.

Non-electrolytes do not conduct electricity because-

a)

no atoms are formed in solution

b)

no molecules are formed in solution

c)

no ions are formed in solution

d)

too many ions are formed in solution

15.

In a supersaturated solution, what happens when sugar is added to a cup of coffee?

a)

The sugar dissolves completely

b)

The sugar settles on the bottom

c)

The sugar floats on top

d)

The sugar evaporates

16.

In a saturated solution, what occurs when sugar is stirred into hot coffee?

a)

The sugar keeps dissolving

b)

The sugar settles on the bottom

c)

The sugar soon stops dissolving

d)

The sugar evaporates

17.

In an unsaturated solution, what happens when sugar is stirred into coffee?

a)

The sugar keeps dissolving

b)

The sugar settles on the bottom

c)

The sugar floats on top

d)

The sugar evaporates

18.

Which coefficients are required to correctly balance the equation, C₂H₂ + O₂ → CO₂ + H₂O?

a)

1, 2, 3, 2

b)

2, 5, 4, 2

c)

2, 4, 5, 2

d)

2, 3, 5, 2

19.

Any two atoms with the same _____ represent the same element. Select TWO correct answers.

a)

number of protons

b)

number of neutrons

c)

number of electrons

d)

atomic number

20.

Consider aqueous solutions of the following four compounds:

MgCl₂ Na₂O C₁₂H₂₂O₁₁ C₂H₅OH

Which two compounds will conduct electricity when dissolved in water? Explain your choices in the box provided. [Constructed Response on DA] ***Use your own language***

a)

MgCl₂ and Na₂O

Compounds are ionic compounds and/or electrolytes.

b)

C₁₂H₂₂O₁₁ and C₂H₅OH

c)

Na₂O and C₁₂H₂₂O₁₁

d)

In aqueous solutions they dissociate into ions and carry electric charge.

21.

Refer to the solubility curve. In order to have a saturated solution, how many grams of potassium nitrate, KNO₃, need to be dissolved in 100 grams of water at 20°C?

a)

20

b)

30

c)

60

d)

100

22.

Of an 8 M solution of HCl, 1 L is diluted to 2 M. What is the volume of the diluted solution?

a)

0.25 L

b)

4 L

c)

6 L

d)

16 L

23.

A student is conducting a lab on an unknown white substance. The substance is a white crystal and does not melt when placed over a heat source for an extended period of time. What properties should the white substance have to indicate that it is an ionic compound? Select TWO correct answers.

a)

It should have a low melting point.

b)

It should be conductive as a solution.

c)

As a solid, it should be able to dissolve in water.

d)

As a solid, the ions should move when voltage is applied.

24.

Which of the following would result in being able to dissolve a greater amount of gas in a solution?

a)

Cool the gas and solution

b)

Make the gas an electrolyte

c)

Heat the gas and solution

d)

Decrease the pressure of the solution

25.

What are the respective coefficients needed to balance the equation below? __N₂ (g) + __H₂ (g) --> __NH₃ (g)

a)

1, 1, 1

b)

1, 2, 3

c)

1, 3, 2

d)

3, 3, 2

26.

[DRAG-and-DROP]

What type of reaction is represented by the equation X(s) + Y(s) → Z(g) + heat

**heat is being released/EXITING**

a)

Endothermic

b)

Exothermic

c)

Cold energy

d)

Neutral

27.

Which of the following conclusions can be made based on the results shown above?

a)

NaNO₃ is insoluble in water.

b)

Ba(NO₃)₂ is insoluble in water.

c)

AgNO₃ is insoluble in water.

d)

AgCl is insoluble in water.

28.

A student is making a solution of sodium carbonate (Na₂CO₃). They mix 0.79 grams of sodium carbonate into 0.05 L of water. What is the molarity of the sodium carbonate solution?

a)

0.15 M Na₂CO₃

b)

1.5 x 10⁻⁴ M Na₂CO₃

c)

6.7 M Na₂CO₃

d)

15.8 M Na₂CO₃

29.

[CONSTRUCTED RESPONSE QUESTION: use your own words]

A student wants to do the following reaction in a lab setting: aluminum + copper (II) chloride → aluminum chloride + copper.

Based on the locations of the metals on the activity series, will the reaction occur? Provide your answer and explanation in the box provided.

a)

Compared to copper, aluminum is higher on the activity series chart, and it can, therefore, bind with chloride and displace copper.

b)

Try not to write word for word as this is a Constructed Response Question.

c)

The reaction will occur because aluminum is more reactive than copper and can displace the reactant in a single replacement reaction.

d)

Use the information from the chart, and think about chemical reactions (single replacements)

30.

In a reaction between aluminum and copper (II) chloride, what is the expected outcome based on the reactivity series?

a)

No reaction occurs

b)

Aluminum chloride and copper are formed

c)

Copper chloride and aluminum are formed

d)

Copper and aluminum chloride are formed

31.

Which of the following metals is the least reactive according to the activity series?

a)

Zinc

b)

Lead

c)

Gold

d)

Iron

32.

Which metal is higher on the activity series chart and can displace copper in a single replacement reaction?

a)

Copper

b)

Aluminum

c)

Iron

d)

Zinc

33.

What volume of 2.5M NaHO solution contains 3.25 mol of NaHO?

a)

0.098 L

b)

0.575 L

c)

1.30 L

d)

1.45 L

34.

To make 2000 mL of 0.300 M sulfuric acid, how many mL of a 1.00 M stock solution should be used?

a)

150 mL

b)

600 mL

c)

667 mL

d)

1500 mL

35.

A student has a 5.00 gram sample of calcium chloride (CaCl₂) solid. How many moles of calcium chloride are contained in this sample?

a)

378 moles of CaCl₂

b)

0.0662 moles of CaCl₂

c)

555 moles of CaCl₂

d)

0.0451 moles of CaCl₂

36.

[DRAG-and-DROP] A student was differentiating between the different types of chemical reactions. They created the table below based on what they had learned in science class. Move the correct titles to the chart.

*Things to remember: any product ending with CO2 and H20 [COMBUSTION]

*Think in terms of couples- Person 1 + Person 2 --> couple; A + B --> AB [Synthesis]

*When a couple gets divorced AB --> A + B [Decomposition]

*Lastly, Single Replacement - swapping out with your friend :) A + BC --> AC + B

Which one is an example of single replacement?

a)

CaCO3 ( s ) → CaO(s) + CO2 (g)

b)

Zn( s ) + 2 HCl( aq ) → ZnCl2 ( aq ) + H2 ( g )

c)

4Al(s) + 3O2 (g) → 2Al2O3 ( s )

d)

2C4H10 (g) + 13O2 (g) → 8CO2 ( g ) + 10H2O(g)

37.

For each scenario, determine the impact on the solubility of the substance by indicating whether it will increase, decrease, or have no effect. Select the correct answer in each row. [Match Table Grid]

a)

breaking a solute into smaller pieces - Increase

b)

breaking a solute into smaller pieces - no change

c)

stirring slowly - increase

d)

stirring slowing - no change

38.

For each scenario, determine the impact on the solubility of the substance by indicating whether it will increase, decrease, or have no effect. Select the correct answer in each row. [Match Table Grid]

a)

raising the temperature of a solvent - decrease

b)

raising the temperature of a solvent - Increase

c)

raising the temperature of a solvent - no change

d)

stirring a solute slowly - Increase

39.

[DRAG-and-DROP] A student was differentiating between the different types of chemical reactions. They created the table below based on what they had learned in science class. Move the correct titles to the chart.

*Things to remember: any product ending with CO2 and H20 [COMBUSTION]

*Think in terms of couples- Person 1 + Person 2 --> couple; A + B --> AB [Synthesis]

*When a couple gets divorced AB --> A + B [Decomposition]

*Lastly, Single Replacement - swapping out with your friend :) A + BC --> AC + B

Which one is an example of Combustion?

a)

CaCO3 ( s ) → CaO(s) + CO2 (g)

b)

4Al(s) + 3O2 (g) → 2Al2O3 ( s )

c)

Zn( s ) + 2 HCl( aq ) → ZnCl2 ( aq ) + H2 ( g )

d)

2C4H10 (g) + 13O2 (g) → 8CO2 ( g ) + 10H2O(g)

40.

[DRAG-and-DROP] A student was differentiating between the different types of chemical reactions. They created the table below based on what they had learned in science class. Move the correct titles to the chart.

*Things to remember: any product ending with CO2 and H20 [COMBUSTION]

*Think in terms of couples- Person 1 + Person 2 --> couple; A + B --> AB [Synthesis]

*When a couple gets divorced AB --> A + B [Decomposition]

*Lastly, Single Replacement - swapping out with your friend :) A + BC --> AC + B

Which one is an example of Decomposition?

a)

CaCO3 ( s ) → CaO(s) + CO2 (g)

b)

4Al(s) + 3O2 (g) → 2Al2O3 ( s )

c)

2C4H10 (g) + 13O2 (g) → 8CO2 ( g ) + 10H2O(g)

d)

Zn( s ) + 2 HCl( aq ) → ZnCl2 ( aq ) + H2 ( g )

41.

[DRAG-and-DROP] A student was differentiating between the different types of chemical reactions. They created the table below based on what they had learned in science class. Move the correct titles to the chart.

*Things to remember: any product ending with CO2 and H20 [COMBUSTION]

*Think in terms of couples- Person 1 + Person 2 --> couple; A + B --> AB [Synthesis]

*When a couple gets divorced AB --> A + B [Decomposition]

*Lastly, Single Replacement - swapping out with your friend :) A + BC --> AC + B

Which one is an example of Synthesis?

a)

CaCO3 ( s ) → CaO(s) + CO2 (g)

b)

4Al(s) + 3O2 (g) → 2Al2O3 ( s )

c)

Zn( s ) + 2 HCl( aq ) → ZnCl2 ( aq ) + H2 ( g )

d)

2C4H10 (g) + 13O2 (g) → 8CO2 ( g ) + 10H2O(g)

42.

When Calcium Carbonate is heated, the following reaction occurs:

CaCO₃ --> CaO _(s) + CO₂ _(g)

The standard enthalpy of reaction of reaction for each substance is shown in the provided table.

What statements correctly classifies the decomposition of calcium carbonate reaction?

a)

The reaction is endothermic because energy is released during the reaction.

b)

The reaction is endothermic because energy is absorbed during the reaction.

c)

The reaction is exothermic because energy is released during the reaction.

d)

The reaction is exothermic because energy is absorbed during the reaction.

DA 3 Review

Total questions: 42

Worksheet time: 42mins

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