Given the following data: ΔH ○ f [FeO(s)] = –270kJmol –1 ΔH ○ f [Fe 2 O 3 (s)] = –820 kJ mol –1 Select the expression which gives the enthalpy change, in kJ mol –1 , for the reaction: 2FeO(s) + 1⁄2O 2 (g) → Fe 2 O 3 (s)

(–820 × 1⁄2) + 270 = –140

Which statement is FALSE for an exothermic reaction?

Reactants have stronger bonds than products

Reactants higher in energy and less stable

Product lower in energy and more stable

Products have stronger bonds than reactants

C 2 H 4 (g) + H 2 (g) -> C 2 H 6 (g) ∆H°=-137 kJ mol -1 Which statement about this information is correct?

The total energy of the bonds broken in the reactants is less than the total energy of the bonds formed in the product

The total energy of the bonds broken in the reactants is greater than the total energy of the bonds formed in the product

The bonds broken and the bonds made are of the same strength

No conclusion can be made about the sums of the bond enthalpies in the product compared with the reactants

Which statement is true regarding endothermic reactions?

Temperature change is negative and enthalpy change is positive

Temperature change is positive and enthalpy change is positive

Temperature change is positive and enthalpy change is negative

Temperature change is negative and enthalpy change is negative

Water has a specific heat capacity of 4.184, and wood has a specific heat capacity of 1.760. Which would require more energy to raise the temperature 1ºC?

They would use the same amount of energy

f two objects have different temperatures when they come in contact, heat will flow from the warmer object to the cooler one UNTIL ____

they both have an equal temperature

one reaches a temperature of zero

There are 2 beakers of water, one has 100 mL in it and one has 1000mL. You add 4000 joules of energy, which one has the bigger change in temperature?

They are the same material so they both heat to the same temperature

That is not enough energy to heat water

Exam 4 Review

Authored by Keirsten Trayte

Chemistry

University

NGSS covered

Used 1+ times

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

Content View

Student View

35 questions

Show all answers

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

B₂H₆ + 3 O₂→ 2 HBO₂ + 2 H₂O
What mass of O₂ will be needed to burn 36.1 g of B₂H₆?

13.8 g O₂

3.86 mol of O₂

124 g O₂

163 g O₂

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

2Na + 2H₂O → 2NaOH + H₂
How many grams of hydrogen are produced if 120 g of Na are available?

5.2 g

2.6 g

7.9 g

13 g

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

SO₂+ PCl₅→ SOCl₂+ POCl₃
How many grams of SOCl₂is produced when 16.2g SO₂react with 13.7g PCl_5?

30.1g

26.4g

7.87g

19.8g

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Cl₂ + 2 KBr → Br₂ + 2 KCl
How many grams of potassium chloride can be produced from 356 g of chlorine and 356 g of potassium bromide?

749 g

223 g

479 g

814 g

Tags

NGSS.HS-PS1-7

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Iron (III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe₂O₃ are formed when 16.9g of Fe reacts completely with oxygen?
4Fe_(s)+3O₂→2Fe₂O_3(s)

48.3 g

11.8 g

4.23 g

24.2 g

Tags

NGSS.HS-PS1-7

NGSS.HS-PS1-2

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Quinone, which is used in the dye industry and in photography, is an organic compound containing only C, H, and O. What is the empirical formula of the compound if you find that 0.105 g of the compound gives 0.257 g of CO₂ and 0.0350 g of H₂O when burned completely?

CHO

C₂H₁₀

C₃H₂O

C₆H₄O₂

Tags

NGSS.HS-PS1-7

NGSS.HS-PS1-2

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

A 0.2500 g sample of a compound known to contain carbon, hydrogen and oxygen undergoes complete combustion to produce 0.3664 g of CO₂ and 0.1500 g of H₂O. What is the empirical formula of this compound?

CH₂O

CHO

COH₃

C₂H₄O

Tags

NGSS.HS-PS1-7

NGSS.HS-PS1-2

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Similar Resources on Wayground

35 questions

Equilibrium & Le Chatelier's Principle

Quiz

•

10th Grade - University

30 questions

Chemical Reactions Test

Quiz

•

9th Grade - University

35 questions

Types of Solids

Quiz

•

10th Grade - University

30 questions

Honors Chemistry Unit 3 Practice Quizizz

Quiz

•

10th Grade - University

38 questions

Fuel Oil Week 14

Quiz

•

University

37 questions

Air Tech- Carburettor and Fuel Injection

Quiz

•

University

40 questions

Matter in our surroundings class 9

Quiz

•

9th Grade - Professio...

30 questions

Types of Reactions Review

Quiz

•

10th Grade - University

Popular Resources on Wayground

15 questions

Fractions on a Number Line

Quiz

•

3rd Grade

20 questions

Equivalent Fractions

Quiz

•

3rd Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

29 questions

Alg. 1 Section 5.1 Coordinate Plane

Quiz

•

9th Grade

$fractions$

22 questions

fractions

Quiz

•

3rd Grade

11 questions

FOREST Effective communication

Lesson

•

20 questions

Main Idea and Details

Quiz

•

5th Grade

20 questions

Context Clues

Quiz

•

6th Grade

Discover more resources for Chemistry

12 questions

IREAD Week 4 - Review

Quiz

•

3rd Grade - University

7 questions

Fragments, Run-ons, and Complete Sentences

Interactive video

•

4th Grade - University

7 questions

Renewable and Nonrenewable Resources

Interactive video

•

4th Grade - University

10 questions

DNA Structure and Replication: Crash Course Biology

Interactive video

•

11th Grade - University

5 questions

Inherited and Acquired Traits of Animals

Interactive video

•

4th Grade - University

5 questions

Examining Theme

Interactive video

•

4th Grade - University

20 questions

Implicit vs. Explicit

Quiz

•

6th Grade - University

7 questions

Comparing Fractions

Interactive video

•

1st Grade - University

Exam 4 Review

B₂H₆ + 3 O₂→ 2 HBO₂ + 2 H₂O
What mass of O₂ will be needed to burn 36.1 g of B₂H₆?

2Na + 2H₂O → 2NaOH + H₂
How many grams of hydrogen are produced if 120 g of Na are available?

SO₂+ PCl₅→ SOCl₂+ POCl₃
How many grams of SOCl₂is produced when 16.2g SO₂react with 13.7g PCl_5?

Cl₂ + 2 KBr → Br₂ + 2 KCl
How many grams of potassium chloride can be produced from 356 g of chlorine and 356 g of potassium bromide?

Iron (III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe₂O₃ are formed when 16.9g of Fe reacts completely with oxygen?
4Fe_(s)+3O₂→2Fe₂O_3(s)

Quinone, which is used in the dye industry and in photography, is an organic compound containing only C, H, and O. What is the empirical formula of the compound if you find that 0.105 g of the compound gives 0.257 g of CO₂ and 0.0350 g of H₂O when burned completely?

A 0.2500 g sample of a compound known to contain carbon, hydrogen and oxygen undergoes complete combustion to produce 0.3664 g of CO₂ and 0.1500 g of H₂O. What is the empirical formula of this compound?

Vanillin, a flavoring agent, is made up of carbon, hydrogen, and oxygen atoms. When a sample of vanillin weighing 2.500g burns in oxygen, 5.79 g of carbon dioxide and 1. 18 g of water are obtained. What is the empirical formula?

When 12 moles of O₂ reacts with 1.1 mole of C₁₀H₈what is the limiting reactant? C₁₀H₈ + 12 O₂→ 10 CO₂ + 4 H₂O

2 Al + 3 Cl₂ →2 AlCl₃.
If 2 moles of aluminum and 2 moles of chlorine are reacted, identify the limiting reactant.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

Exam 4 Review

B2H6 + 3 O2 → 2 HBO2 + 2 H2O What mass of O2 will be needed to burn 36.1 g of B2H6?

2Na + 2H2O → 2NaOH + H2How many grams of hydrogen are produced if 120 g of Na are available?

SO2 + PCl5 → SOCl2 + POCl3How many grams of SOCl2 is produced when 16.2g SO2 react with 13.7g PCl5?

Cl2 + 2 KBr → Br2 + 2 KClHow many grams of potassium chloride can be produced from 356 g of chlorine and 356 g of potassium bromide?

Iron (III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe2O3 are formed when 16.9g of Fe reacts completely with oxygen?4Fe(s)+3O2→2Fe2O3(s)

Quinone, which is used in the dye industry and in photography, is an organic compound containing only C, H, and O. What is the empirical formula of the compound if you find that 0.105 g of the compound gives 0.257 g of CO2 and 0.0350 g of H2O when burned completely?

A 0.2500 g sample of a compound known to contain carbon, hydrogen and oxygen undergoes complete combustion to produce 0.3664 g of CO2 and 0.1500 g of H2O. What is the empirical formula of this compound?

Vanillin, a flavoring agent, is made up of carbon, hydrogen, and oxygen atoms. When a sample of vanillin weighing 2.500g burns in oxygen, 5.79 g of carbon dioxide and 1. 18 g of water are obtained. What is the empirical formula?

When 12 moles of O2 reacts with 1.1 mole of C10H8 what is the limiting reactant? C10H8 + 12 O2 → 10 CO2 + 4 H2O

2 Al + 3 Cl2 →2 AlCl3. If 2 moles of aluminum and 2 moles of chlorine are reacted, identify the limiting reactant.

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

B₂H₆ + 3 O₂→ 2 HBO₂ + 2 H₂O
What mass of O₂ will be needed to burn 36.1 g of B₂H₆?

2Na + 2H₂O → 2NaOH + H₂
How many grams of hydrogen are produced if 120 g of Na are available?

SO₂+ PCl₅→ SOCl₂+ POCl₃
How many grams of SOCl₂is produced when 16.2g SO₂react with 13.7g PCl_5?

Cl₂ + 2 KBr → Br₂ + 2 KCl
How many grams of potassium chloride can be produced from 356 g of chlorine and 356 g of potassium bromide?

Iron (III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe₂O₃ are formed when 16.9g of Fe reacts completely with oxygen?
4Fe_(s)+3O₂→2Fe₂O_3(s)

Quinone, which is used in the dye industry and in photography, is an organic compound containing only C, H, and O. What is the empirical formula of the compound if you find that 0.105 g of the compound gives 0.257 g of CO₂ and 0.0350 g of H₂O when burned completely?

A 0.2500 g sample of a compound known to contain carbon, hydrogen and oxygen undergoes complete combustion to produce 0.3664 g of CO₂ and 0.1500 g of H₂O. What is the empirical formula of this compound?

When 12 moles of O₂ reacts with 1.1 mole of C₁₀H₈what is the limiting reactant? C₁₀H₈ + 12 O₂→ 10 CO₂ + 4 H₂O

2 Al + 3 Cl₂ →2 AlCl₃.
If 2 moles of aluminum and 2 moles of chlorine are reacted, identify the limiting reactant.