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Bond Energy

Authored by Lisa Thompson

Science

10th Grade

NGSS covered

Bond Energy
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25 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The average bond enthalpies for O-O and O=O are 146 and 496 kJ/mol respectively. What is the enthalpy change, in kJ, for the reaction below?

H-O-O-H(g) → H-O-H(g) + ½O=O(g)

-102

+102

+350

+394

Tags

NGSS.HS-PS1-4

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

For the reaction 2H2(g) + O2(g) → 2H2O(g) the bond enthalpies (in kJ/mol) are H-H = x, O=O = y, O-H = z Which calculation will give the value, in kJ/mol, of ΔH for the reaction?

2x + y - 2z

4z - 2x - y

2x + y - 4z

2z - 2x - y

Tags

NGSS.HS-PS1-4

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Using the table of average bond energies below the image, the ΔH for the reaction in kJ is.....

+ 160 kJ

-63 kJ

- 160 kJ

-217 kJ

Tags

NGSS.HS-PS1-4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When new chemical bonds form, energy ____________.

is taken into the system.

is released from the system.

stays the same in the system.

Tags

NGSS.HS-PS1-4

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

What is the average bond energy of H-H ?

Tags

NGSS.HS-PS1-4

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

What is the average bond energy of C-H ?

Tags

NGSS.HS-PS1-4

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

What is the average bond energy of N-Cl ?

Tags

NGSS.HS-PS1-4

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