Compounds and mixtures

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Last updated: 22/10/2019

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Question 1 of 25

1. Question
What is the definition of a compound?
- When two different types of atoms are chemically bonded together.
- When a substance is made of only one type of atom.
- When two or more substances are not chemically bonded together.
- When two atoms are not chemically bonded together.
Question 2 of 25

2. Question
What is the definition of a mixture?
- A substance made from two or more elements
- A substance made from one atom
- A substance made from one element
- A substance made from two or more atoms
Question 3 of 25

3. Question
Which of the following is the most easiest to separate?
- Mixture
- Element
- Atom
- Compound
Question 4 of 25

4. Question
Describe the composition of a compound.
- A fixed composition.
- No fixed composition.
- No composition at all.
- Semi-fixed composition.
Question 5 of 25

5. Question
Describe the composition of a mixture.
- No fixed composition.
- A fixed composition.
- No composition at all.
- Semi-fixed composition.
Question 6 of 25

6. Question
How must compounds be separated?
- By chemical reactions.
- By intermolecular bonding.
- By physical processes.
- By heating.
Question 7 of 25

7. Question
How must mixtures be separated?
- By physical processes.
- By intermolecular bonding.
- By chemical reactions.
- By heating.
Question 8 of 25

8. Question
How easy is it to separate a compound?
- Very difficult.
- Easy through physical processes.
- Depends on the compound.
- Impossible.
Question 9 of 25

9. Question
How easy is it to separate a mixture?
- Easy through physical processes.
- Very difficult.
- Depends on the mixture.
- Impossible.
Question 10 of 25

10. Question
Describe the chemical bonds in a compound.
- Chemical bonds between the atoms of the different elements.
- No chemical bonds between atoms of the different substances.
- Chemical bonds between atoms of the different substances.
- No chemical bonds between atoms, only intermolecular bonds.
Question 11 of 25

11. Question
Describe the chemical bonds in a mixture.
- No chemical bonds between atoms of the different substances
- Chemical bonds between the atoms of the different elements.
- Chemical bonds between atoms of the different substances.
- No chemical bonds between atoms, only intermolecular bonds.
Question 12 of 25

12. Question
When separating mixtures, what properties are relied on?
- Physical
- Chemical
- Ionic
- Sub-atomic
Question 13 of 25

13. Question
Describe the purity of a compound.
- Pure
- Pure with some impurities
- Impure
- Impure with some purities.
Question 14 of 25

14. Question
Describe the purity of a mixture.
- Impure
- Pure with some impurities
- Pure
- Impure with some purities.
Question 15 of 25

15. Question
Which of the following is a mixture?
- Sea water
- Hydrochloric acid
- Carbon dioxide
- Water
Question 16 of 25

16. Question
Which of the following is a mixture?
- Mud
- Chlorine
- Ethyl ethanoate
- Alcohol
Question 17 of 25

17. Question
Which of the following is a mixture?
- Gasoline
- Hydrochloric acid
- Oxygen
- Tin
Question 18 of 25

18. Question
Which of the following is a mixture?
- Cement
- Bromine
- Phosphoric acid
- Sulfuric acid
Question 19 of 25

19. Question
Which of the following is a mixture?
- Water and oil
- Sodium hydroxide
- Carbon monoxide
- Oxygen
Question 20 of 25

20. Question
Which of the following is a compound?
- Hydrochloric acid
- Water and oil
- Sea water
- Mud
Question 21 of 25

21. Question
Which of the following is a compound?
- Sodium chloride
- Gasoline
- Cement
- Mud
Question 22 of 25

22. Question
Which of the following is a compound?
- Ethanol
- Water and oil
- Sea water
- Gasoline
Question 23 of 25

23. Question
Which of the following an be separated using distillation?
- Mixture
- Compound
- Atom
- Element
Question 24 of 25

24. Question
Which of the following an be separated using filtration?
- Mixture
- Compound
- Atom
- Element
Question 25 of 25

25. Question
Which of the following an be separated using crystallisation?
- Mixture
- Compound
- Atom
- Element

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