Spring Final 2021

Last updated almost 5 years ago

28 questions

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Library

Spring Final 2021

Last updated almost 5 years ago

28 questions

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Using the following chemical equation, how many grams of phosphorus are needed to produce 25.3 grams of diphosphorus pentaoxide?
P + O2 → P2O5

2

5

2

When 8 moles of aluminum react according to the reaction below, ______ moles of copper will be produced.

2Al + 3CuSO4 --> Al2(SO4)3 + 3Cu

2

Draggable item		Corresponding Item

1

Balancing the equation; make sure you show your work.

2

3

What is wrong with this set up?

2

3

Using the following chemical reaction, determine how many moles of Mg(OH)2 will be produced if you start with 12 moles of H2O.
Mg + H2O → Mg(OH)2 + H2

3

P4 + Cl2 → PCl3
Calculate how many grams of phosphorus that reacted if 250g of phosphorus trichloride, PCl3 is produced by the above reaction.

2

5

3

What causes the plates in the lithosphere to move?

2

4

2

A hot metal sinker of mass 68.2 grams at 99.8°C is dropped into a cup containing 125 mL of water at 22.4°C. The final temperature in the cup is 31.0°C. What is the specific heat capacity of the metal? Submit/show your work.

3

Consider the following heating curve for water and answer the following questions:
a. Describe as fully as you can what is happening for each section of the curve (for example, what is going on between A and B, B and C, etc.
b. What is the temperature at point B?
c. What is the temperature at point E?

If you have 1.5 moles of copper (Cu), how many grams is that?

0.02 g Cu

96 g Cu

9.03 x 1023 g Cu

2.5 x 10-24 g Cu

Using the following chemical equation, how many grams of phosphorus are needed to produce 25.3 grams of diphosphorus pentaoxide?
P + O2 → P2O5

2.7 x 1025 molecules of MnO equals how many moles?

1.63 x 1049 mol MnO

3,183.64 mol MnO

44.84 mol MnO

3.80 x 1023 mol MnO

Match the chemical reactions with their respective type

C6H12O6 + 6O2 --> 6CO2 + 6 H2O
H2 + I2 --> 2HI
NaOH + HCl --> NaCl + H2O
MgCl2 + Zn --> ZnCl2 + Mg
A + B --> AB
CxHy + O2 --> CO2 + H2O
A + BC --> AC + B
AB --> A + B
AB + CD --> AD + CB
2H2O --> 2H2 + O2

Synthesis
Decomposition
Single Replacement
Double Replacement
Combustion

Which of the following can be correctly said about 1.0 mole sample of Ag and 1.0 mole sample of Au? Select all that apply.

When 8 moles of aluminum react according to the reaction below, ______ moles of copper will be produced.

2Al + 3CuSO4 --> Al2(SO4)3 + 3Cu

On a hot day, a small, well-insulated building is significantly colder than the outside. A solid metal door leads to the outside, and a person placing their hand nearby but not touchng the door can feel warmth from the door. How does the heat from outside make it into the hand?

heat from outside is convected through the door from outside, then is conducted through the air to the hand

heat from outside is convected through the door, then is radiated from the door to the hand

heat from outside is conducted through the door, then is radiated from the door to the hand

heat from outside is radiated through the door, then is radiated from the door to the hand.

What is the melting point of the substance?

0 °C

25 °C

15 °C

5 °C

Match the following masses with the number of moles.

Draggable item		Corresponding Item
4.04 g of H2		1 mole
16.0 g of O2		2 moles
10.0 g of NaOH		0.5 moles
23 g of Na		0.25 moles

Balancing the equation; make sure you show your work.

When heat is added to boiling water, the temperature of the boiling water

decreases.

stays the same.

increases.

In a greenhouse, glass acts as a one-way valve, letting

high-frequency light in and preventing low-frequency radiation from escaping.

low-frequency light in and preventing high-frequency radiation from escaping.

none of the above

What is wrong with this set up?

Endothermic reactions result in: (Select all that apply)

the substance feeling cold

energy absorbed from the surroundings

the substance feeling hot

energy given off to the surroundings

Using the following chemical reaction, determine how many moles of Mg(OH)2 will be produced if you start with 12 moles of H2O.
Mg + H2O → Mg(OH)2 + H2

P4 + Cl2 → PCl3
Calculate how many grams of phosphorus that reacted if 250g of phosphorus trichloride, PCl3 is produced by the above reaction.

Why does warm air rise?

it is less dense

gravity does not effect it

it has less volume

it is more dense

Categorize the layers of the earth by their state.

Outer Core
Asthenosphere
Inner Core
Crust
Mantle

Solid
Liquid

What causes the plates in the lithosphere to move?

What trend does the NASA graph above show?

Steady temperature cycles then a sudden recent increase

Continual steady temperatures

Recent decrease in temperatures

Unsteady temperature cycles then sudden stable temperatures

Using your graph reading skills, watch the animation. Based on this animated graph, what factor corresponds closely to the increase in Earth's average temperature since 1880?

Why are China and India's carbon dioxide emissions increasing? (Select all that apply)

Without the greenhouse effect, Earth would be _________ to support life.

too dry

too wet

too cold

too hot

Which of the following is NOT evidence of global warming? Select all that apply

Extreme weather events

Less water vapor in the air

Loss of arctic ice

Sea level rising

Two metals of equal mass but different specific heat capacities are subjected to the same amount of heat. Which will undergo the smallest change in temperature?

You need to know the identities of the metals

Both undergo the same change in temperature

The metal with the higher heat capacity

You need to know the initial temperatures of the metals

The metal with the lower heat capacity

Which of the following is true for temperature?

The higher the temperature, the higher the kinetic energy

Temperature is measured in Joules

When temperature goes down, energy goes up

Temperature is about the movement of energy from one location to another

Temperature is about the speed of particles in a sample

A hot metal sinker of mass 68.2 grams at 99.8°C is dropped into a cup containing 125 mL of water at 22.4°C. The final temperature in the cup is 31.0°C. What is the specific heat capacity of the metal? Submit/show your work.

Consider the following heating curve for water and answer the following questions:
a. Describe as fully as you can what is happening for each section of the curve (for example, what is going on between A and B, B and C, etc.
b. What is the temperature at point B?
c. What is the temperature at point E?

If you have 1.5 moles of copper (Cu), how many grams is that?

0.02 g Cu

96 g Cu

9.03 x 1023 g Cu

2.5 x 10-24 g Cu

2.7 x 1025 molecules of MnO equals how many moles?

1.63 x 1049 mol MnO

3,183.64 mol MnO

44.84 mol MnO

3.80 x 1023 mol MnO

Match the chemical reactions with their respective type

C6H12O6 + 6O2 --> 6CO2 + 6 H2O

H2 + I2 --> 2HI

NaOH + HCl --> NaCl + H2O

MgCl2 + Zn --> ZnCl2 + Mg

A + B --> AB

CxHy + O2 --> CO2 + H2O

A + BC --> AC + B

AB --> A + B

AB + CD --> AD + CB

2H2O --> 2H2 + O2

Synthesis

Decomposition

Single Replacement

Double Replacement

Combustion

Which of the following can be correctly said about 1.0 mole sample of Ag and 1.0 mole sample of Au? Select all that apply.

They have the same molar mass.

There are more atoms of Ag.

There are more atoms of Au.

They have the same mass.

The sample of Ag will weigh more.

They have the same number of atoms.

The sample of Au will weigh more.

On a hot day, a small, well-insulated building is significantly colder than the outside.  A solid metal door leads to the outside, and a person placing their hand nearby but not touchng the door can feel warmth from the door.  How does the heat from outside make it into the hand?

heat from outside is convected through the door from outside, then is conducted through the air to the hand

heat from outside is convected through the door, then is radiated from the door to the hand

heat from outside is conducted through the door, then is radiated from the door to the hand

heat from outside is radiated through the door, then is radiated from the door to the hand.

What is the melting point of the substance? 

0 °C

25 °C

15 °C

5 °C

Match the following masses with the number of moles.

4.04 g of H2

1 mole

16.0 g of O2

2 moles

10.0 g of NaOH

0.5 moles

23 g of Na

0.25 moles

When heat is added to boiling water, the temperature of the boiling water

decreases.

stays the same.

increases.

In a greenhouse, glass acts as a one-way valve, letting

high-frequency light in and preventing low-frequency radiation from escaping.

low-frequency light in and preventing high-frequency radiation from escaping.

none of the above

Endothermic reactions result in: (Select all that apply)

the substance feeling cold

energy absorbed from the surroundings

the substance feeling hot

energy given off to the surroundings

Why does warm air rise?

it is less dense

gravity does not effect it

it has less volume

it is more dense

Categorize the layers of the earth by their state.

Outer Core

Asthenosphere

Inner Core

Crust

Mantle

Solid

Liquid

What trend does the NASA graph above show?

Steady temperature cycles then a sudden recent increase

Continual steady temperatures

Recent decrease in temperatures

Unsteady temperature cycles then sudden stable temperatures

Using your graph reading skills, watch the animation.  Based on this animated graph,  what factor corresponds closely to the increase in Earth's average temperature since 1880?

changes in aerosol levels in the air

deforestation

changes in the Earth's orbit

changes in ozone levels in the atmosphere

natural factors

changes in solar activity

changes in the levels of greenhouse gases

volcanic activity

Why are China and India's carbon dioxide emissions increasing? (Select all that apply)

Food Production

Water usage

Population Growth

Burning of fossil fuels for electricity

Industrial Revolution

Ocean Currents

Without the greenhouse effect, Earth would be _________ to support life.

too dry

too wet

too cold

too hot

Which of the following is NOT evidence of global warming? Select all that apply

Extreme weather events

Less water vapor in the air

Loss of arctic ice

Sea level rising

Two metals of equal mass but different specific heat capacities are subjected to the same amount of heat. Which will undergo the smallest change in temperature?

You need to know the identities of the metals

Both undergo the same change in temperature

The metal with the higher heat capacity

You need to know the initial temperatures of the metals

The metal with the lower heat capacity

Which of the following is true for temperature?

The higher the temperature, the higher the kinetic energy

Temperature is measured in Joules

When temperature goes down, energy goes up

Temperature is about the movement of energy from one location to another

Temperature is about the speed of particles in a sample

Spring Final 2021

Spring Final 2021

Using the following chemical equation, how many grams of phosphorus are needed to produce 25.3 grams of diphosphorus pentaoxide?P + O2 → P2O5

When 8 moles of aluminum react according to the reaction below, ______ moles of copper will be produced.2Al + 3CuSO4 --> Al2(SO4)3 + 3Cu

Balancing the equation; make sure you show your work.

What is wrong with this set up?

Using the following chemical reaction, determine how many moles of Mg(OH)2 will be produced if you start with 12 moles of H2O.Mg + H2O → Mg(OH)2 + H2

P4 + Cl2 → PCl3 Calculate how many grams of phosphorus that reacted if 250g of phosphorus trichloride, PCl3 is produced by the above reaction.

What causes the plates in the lithosphere to move?

A hot metal sinker of mass 68.2 grams at 99.8°C is dropped into a cup containing 125 mL of water at 22.4°C. The final temperature in the cup is 31.0°C. What is the specific heat capacity of the metal? Submit/show your work.

Consider the following heating curve for water and answer the following questions:a. Describe as fully as you can what is happening for each section of the curve (for example, what is going on between A and B, B and C, etc.b. What is the temperature at point B?c. What is the temperature at point E?

If you have 1.5 moles of copper (Cu), how many grams is that?

Using the following chemical equation, how many grams of phosphorus are needed to produce 25.3 grams of diphosphorus pentaoxide?P + O2 → P2O5

2.7 x 1025 molecules of MnO equals how many moles?

Match the chemical reactions with their respective type

Which of the following can be correctly said about 1.0 mole sample of Ag and 1.0 mole sample of Au? Select all that apply.

When 8 moles of aluminum react according to the reaction below, ______ moles of copper will be produced.2Al + 3CuSO4 --> Al2(SO4)3 + 3Cu

On a hot day, a small, well-insulated building is significantly colder than the outside. A solid metal door leads to the outside, and a person placing their hand nearby but not touchng the door can feel warmth from the door. How does the heat from outside make it into the hand?

What is the melting point of the substance?

Match the following masses with the number of moles.

Balancing the equation; make sure you show your work.

When heat is added to boiling water, the temperature of the boiling water

In a greenhouse, glass acts as a one-way valve, letting

What is wrong with this set up?

Endothermic reactions result in: (Select all that apply)

Using the following chemical reaction, determine how many moles of Mg(OH)2 will be produced if you start with 12 moles of H2O.Mg + H2O → Mg(OH)2 + H2

P4 + Cl2 → PCl3 Calculate how many grams of phosphorus that reacted if 250g of phosphorus trichloride, PCl3 is produced by the above reaction.

Why does warm air rise?

Categorize the layers of the earth by their state.

What causes the plates in the lithosphere to move?

What trend does the NASA graph above show?

Using your graph reading skills, watch the animation. Based on this animated graph, what factor corresponds closely to the increase in Earth's average temperature since 1880?

Why are China and India's carbon dioxide emissions increasing? (Select all that apply)

Without the greenhouse effect, Earth would be _________ to support life.

Which of the following is NOT evidence of global warming? Select all that apply

Two metals of equal mass but different specific heat capacities are subjected to the same amount of heat. Which will undergo the smallest change in temperature?

Which of the following is true for temperature?

A hot metal sinker of mass 68.2 grams at 99.8°C is dropped into a cup containing 125 mL of water at 22.4°C. The final temperature in the cup is 31.0°C. What is the specific heat capacity of the metal? Submit/show your work.

Consider the following heating curve for water and answer the following questions:a. Describe as fully as you can what is happening for each section of the curve (for example, what is going on between A and B, B and C, etc.b. What is the temperature at point B?c. What is the temperature at point E?

Using the following chemical equation, how many grams of phosphorus are needed to produce 25.3 grams of diphosphorus pentaoxide?
P + O2 → P2O5

When 8 moles of aluminum react according to the reaction below, ______ moles of copper will be produced.

2Al + 3CuSO4 --> Al2(SO4)3 + 3Cu

Using the following chemical reaction, determine how many moles of Mg(OH)2 will be produced if you start with 12 moles of H2O.
Mg + H2O → Mg(OH)2 + H2

P4 + Cl2 → PCl3
Calculate how many grams of phosphorus that reacted if 250g of phosphorus trichloride, PCl3 is produced by the above reaction.

Using the following chemical equation, how many grams of phosphorus are needed to produce 25.3 grams of diphosphorus pentaoxide?
P + O2 → P2O5

When 8 moles of aluminum react according to the reaction below, ______ moles of copper will be produced.

2Al + 3CuSO4 --> Al2(SO4)3 + 3Cu

Using the following chemical reaction, determine how many moles of Mg(OH)2 will be produced if you start with 12 moles of H2O.
Mg + H2O → Mg(OH)2 + H2

P4 + Cl2 → PCl3
Calculate how many grams of phosphorus that reacted if 250g of phosphorus trichloride, PCl3 is produced by the above reaction.