How do you calculate Enthalpy of a reaction?

ΔH = ΔH products - ΔH reactants

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

Standard enthalpy of precipitation

Which of the following represents a correct thermochemical equation?

N 2 H 4(g) + H 2(g) --> 2NH 3(g) ∆H = -188 kJ

CH 4 + O 2 --> CO 2 + H 2 O ∆H = -891 kJ

What is a thermochemical equation?

A balanced chemical equation that includes the physical states of all reactants and products and the energy change, usually expressed as the change in the enthalpy.

A chemical equation where the temperature is shown

A balanced chemical equation showing the moles of reactants and products

An equation showing the difference between the work of the products and reactants

An equation that shows the number of molecules of products and reactants

Which of the following is INCORRECT?

The enthalpy of H 2 O(l) is not the same as the enthalpy of H 2 O(s)

What is the enthalpy for the following equation: H 2 O (s) + 6.01 kJ/mol --> H 2 O (l)

ΔH is 0 for all reactions because energy is not created nor destroyed

It is impossible to know the enthalpy with the information given.

Which represents a decrease in entropy?

condensation of steam on cold glass

Which has a +ΔS (system) ?

C 2 H 2 O 2 (g) → 2CO(g) + H 2 (g)

AgNO 3 (aq) + NaCl(aq) → AgCl(s) + NaNO 3 (aq)

H 2 O(g) + CO 2 (g) → H 2 CO 3 (aq)

Systems in nature tend to undergo changes toward

higher energy and less disorder

higher energy and more disorder

Heat and energy

Quiz

•

Chemistry

•

10th - 12th Grade

•

Practice Problem

•

Hard

•

NGSS

HS-PS1-4, HS-PS3-4, MS-PS1-4

+5

Standards-aligned

Suzanne Monir

Used 55+ times

FREE Resource

39 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which material will heat travel through the fastest?

Plastic

Wood

Metal

Tags

NGSS.HS-PS3-4

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When Water Turns into gas it is called?

Water Vapor

Darth Vapor

Melts

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A device used to measure temperature

Thermometer

Barometer

Blabometer

hamamamometer

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The SI unit of heat and energy is the __________.

calorie

heat

joule

watt

Tags

NGSS.HS-PS3-4

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Temperature is a measure of average [blank] energy of individual atoms.

heat

potential

mechanical

kinetic

Tags

NGSS.HS-PS3-2

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

ΔH value in an endothermic reaction is a positive number.

True

False

Tags

NGSS.HS-PS1-4

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Temperature is a measure of average [blank] energy of individual atoms.

heat

potential

mechanical

kinetic

Tags

NGSS.HS-PS3-2

Create a free account and access millions of resources

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

Bimonthly Test

Quiz

•

11th Grade

34 questions

Chemical Reactions and Equations

Quiz

•

9th Grade - University

37 questions

Chemical Bonding, Molecular Shapes, and Intermolecular Force

Quiz

•

10th - 11th Grade

34 questions

Lab Safety Quiz

Quiz

•

9th - 12th Grade

36 questions

Chemistry

Quiz

•

6th - 10th Grade

40 questions

Chem. Final Exam (Sem.2 ) Review

Quiz

•

9th - 12th Grade

40 questions

Chemistry NCFE Released Questions

Quiz

•

10th - 12th Grade

41 questions

Writing and naming compounds

Quiz

•

10th - 12th Grade

Popular Resources on Wayground

5 questions

This is not a...winter edition (Drawing game)

Quiz

•

1st - 5th Grade

15 questions

4:3 Model Multiplication of Decimals by Whole Numbers

Quiz

•

5th Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

10 questions

The Best Christmas Pageant Ever Chapters 1 & 2

Quiz

•

4th Grade

12 questions

Unit 4 Review Day

Quiz

•

3rd Grade

10 questions

Identify Iconic Christmas Movie Scenes

Interactive video

•

6th - 10th Grade

20 questions

Christmas Trivia

Quiz

•

6th - 8th Grade

18 questions

Kids Christmas Trivia

Quiz

•

KG - 5th Grade

Discover more resources for Chemistry

20 questions

Periodic Trends

Quiz

•

10th Grade

20 questions

Unit 6-Review The Mole

Quiz

•

11th - 12th Grade

29 questions

Physical or Chemical Changes

Quiz

•

9th - 10th Grade

20 questions

Periodic Table & Trends

Quiz

•

10th Grade

20 questions

Electron Configuration

Quiz

•

10th - 12th Grade

21 questions

Unit 6 -The Mole Review

Quiz

•

11th - 12th Grade

20 questions

Naming Compounds: Basic Ionic and Covalent Naming

Quiz

•

9th - 12th Grade

20 questions

Naming Covalent Compounds

Quiz

•

11th Grade

Heat and energy

39 questions

Which material will heat travel through the fastest?

When Water Turns into gas it is called?

A device used to measure temperature

The SI unit of heat and energy is the __________.

Temperature is a measure of average [blank] energy of individual atoms.

ΔH value in an endothermic reaction is a positive number.

Temperature is a measure of average [blank] energy of individual atoms.

True/False: The rate of a chemical reaction is unrelated to the spontaneity of the reaction.

What type of reaction is shown in the reaction pathway?

_?_ is the amount of energy (joules) required to raise the temperature of 1 mole of a substance by 1 K. Units are J/mol-K.

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry