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1. Is iron (III) hydroxide soluble?

slightly

yes

no

Question 1 of 10

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2. Explain the term unsaturated

A molecule containing only single bonds

A compound that is a liquid at room temperature

A poisonous molecule

A molecule containing a carbon-carbon double or triple bond

Question 2 of 10

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3. If a substance gains oxygen in a reaction how is the process described?

Oxidation

Hydrolysis

Reduction

Combustion

Question 3 of 10

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4. In chromatography, what are the minimum and maximum possible values for an Rf value?

Minimum=0. Maximum=1.

Minimum=0. Maximum=0.5

Minimum=-1. Maximum=1

Minimum=0. Maximum=100

Question 4 of 10

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5. What will happen to the equilibrium position when we increase pressure ? Give a reason for your prediction. A (g) + B (g) ⇋ C (g) + D (g) (+∆H)

Equilibrium will move to the left because there are more molecules on the left hand side

Equilibrium will not shift in position, because there are the same number of molecules on each side

Equilibrium will move to the left because there are fewer molecules on the left hand side

Equilibrium will move to the right because there are more molecules on the right hand side

Question 5 of 10

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6. Are anions positively or negatively charged?

neutral

either

negatively

positively

Question 6 of 10

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7. What will happen to the rate of reaction when a catalyst is added? A (g) + B (g) ⇋ C (g) (-∆H)

remain constant

it depends on the conditions

decrease

increase

Question 7 of 10

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8. What is this equipment used for in the lab?

This is simple distillation, used to obtain a solvent from a solution

This is simple distillation, used to separate a mixure of liquids with different boiling points

This is fractional distillation, used to separate a mixure of liquids with different boiling points

This is fractional distillation, used to obtain a solvent from a solution

Question 8 of 10

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9. State the formula of the silver ion

Ag²⁺

Ag²⁻

Ag⁻

Ag⁺

Question 9 of 10

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10. Explain how crude oil is separated into fractions

Crude oil is separated by fractional distillation. Crude oil is heated and the oil evaporates. It then goes into the tower. As the vapours rise up the tower the temperature rises. Different sized fractions condense at different heights because they have different boiling points. Smaller molecules condense high up in the tower. Larger molecules condense low down in the tower. Then the fractions are collected.

Crude oil is separated by fractional distillation. Crude oil is heated and the oil evaporates. It then goes into the tower. As the vapours rise up the tower the temperature falls. Different sized fractions condense at different heights because they have different boiling points. Larger molecules condense high up in the tower. Smaller molecules condense low down in the tower. Then the fractions are collected.

Crude oil is separated by fractional distillation. Crude oil is heated and the oil evaporates. It then goes into the tower. As the vapours rise up the tower the temperature falls. Different sized fractions condense at different heights because they have different boiling points. Smaller molecules condense high up in the tower. Larger molecules condense low down in the tower. Then the fractions are collected.

Crude oil is separated by fractional distillation. Crude oil is heated and the oil evaporates. It then goes into the tower. As the vapours rise up the tower the temperature rises. Different sized fractions condense at different heights because they have different boiling points. Larger molecules condense high up in the tower. Smaller molecules condense low down in the tower. Then the fractions are collected.

Question 10 of 10

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Hydr0Gen2022-03-09T21:22:06+00:00Categories: Uncategorized|Tags: Quiz|

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