Chemistry modules 2 and 3

Question 1 of 10

1

What does le Chatelier's principle state?

Select one of the following:

When a system in equilibrium is subjected to an external change, the system will readjust itself to minimise the effect of the change.
When a system in equilibrium is subjected to an external change, the system will readjust itself to maximise the effect of the change.
When a system in equilibrium is subjected to an internal change, the system will readjust itself to minimise the effect of the change.
When a system in equilibrium is subjected to an internal change, the system will readjust itself to maximise the effect of the change.

Explanation

Question 2 of 10

1

Which of these affect the position of equilibrium?

Select one or more of the following:

Changing the temperature.
Changing the pressure.
Adding a catalyst.
Removing product.
Removing reactant.
Changing the concentration

Explanation

Question 3 of 10

1

In the Haber process, increasing the ❌ will shift the equilibrium to the ❌, because there are ❌ moles of ammonia than moles of the ❌. However, this is expensive, so it is not economical to keep it high.

Drag and drop to complete the text.

pressure

temperature

right

left

fewer

more

reactants

products

Explanation

Question 4 of 10

1

Symmetrical molecules are always polar.

Select one of the following:

True
False

Explanation

Question 5 of 10

1

Which of the following intermolecular forces occur between molecules of HCl?

Select one or more of the following:

London forces
Permanent dipole-dipole interactions
Hydrogen bonds

Explanation

Question 6 of 10

4

Fill the blank spaces to complete the text.

Place the group 2 elements in order of ascending melting point: Si > > Mg > > > > > Ar

Explanation

Question 7 of 10

1

Giant metallic structures have higher melting points than giant covalent structures.

Select one of the following:

True
False

Explanation

Question 8 of 10

1

	Created by Neil Patil over 8 years ago

Quiz on Chemistry modules 2 and 3, created by Neil Patil on 07/01/2016.

Chemistry modules 2 and 3

Question 1 of 10

What does le Chatelier's principle state?

Select one of the following:

Explanation

Question 2 of 10

Which of these affect the position of equilibrium?

Select one or more of the following:

Explanation

Question 3 of 10

In the Haber process, increasing the ❌ will shift the equilibrium to the ❌, because there are ❌ moles of ammonia than moles of the ❌. However, this is expensive, so it is not economical to keep it high.

Drag and drop to complete the text.

Explanation

Question 4 of 10

Symmetrical molecules are always polar.

Select one of the following:

Explanation

Question 5 of 10

Which of the following intermolecular forces occur between molecules of HCl?

Select one or more of the following:

Explanation

Question 6 of 10

Fill the blank spaces to complete the text.

Place the group 2 elements in order of ascending melting point: Si > > Mg > > > > > Ar

Explanation

Question 7 of 10

Giant metallic structures have higher melting points than giant covalent structures.

Select one of the following:

Explanation

Question 8 of 10

All sub shells in the 3rd shell are filled before the 4s sub shell starts to fill.

Select one of the following:

Explanation

Question 9 of 10

The molecule platinum hexafluoride (PtF6) has an octahedral shape.

Select one of the following:

Explanation

Question 10 of 10

Iron has the electron formation: 1s2 2s2 2p6 3s2...

Select one of the following:

Explanation