What is the biggest difference between a mixture and a compound? (2 marks)
List 3 characteristics of a compound? (3 marks)
Give an example of a compound. (1 mark)
LIst down 3 characteristics of a mixture? (3 marks)
Give an example of a mixture. (1 mark)
Explain what a homogenous mixture is. (1 mark)
Give an example of a homogenous mixture. (1 mark)
Explain what a heterogenous mixture is. (1 mark)
Give an example of a heterogenous mixture. (1 mark)
Answers:
1. The biggest difference of mixture is that when in mixture, physical change takes
place, but when in compound, chemical change takes place.
2. They don't actually look the same like their original elements. They are made of
2 or more elements that chemically combine. Difficult to undo or separate a
compound..
3. water.
4. Each of the substances in a mixture keeps it's own properties (same looking).
Can easily separate a mixture, e.g sand + salt. Combination of substances held
together by physical forces, not chemical forces.
5. Salad sauce.
6. A homogenous mixture is something that is combined or mixed together physically,
but you cannot see some substances when put together, which means it is evenly
spread. Solution is homogenous.
7. salt water (salt+water)
8. A heterogenous mixture is something that is mixed or combined together physically,
and you can see the substances all clearly, which means it is unevenly spread.
IT IS NOT COMBINED COMPLETELY!
9. Salad dressing.
List 3 characteristics of a compound? (3 marks)
Give an example of a compound. (1 mark)
LIst down 3 characteristics of a mixture? (3 marks)
Give an example of a mixture. (1 mark)
Explain what a homogenous mixture is. (1 mark)
Give an example of a homogenous mixture. (1 mark)
Explain what a heterogenous mixture is. (1 mark)
Give an example of a heterogenous mixture. (1 mark)
Answers:
1. The biggest difference of mixture is that when in mixture, physical change takes
place, but when in compound, chemical change takes place.
2. They don't actually look the same like their original elements. They are made of
2 or more elements that chemically combine. Difficult to undo or separate a
compound..
3. water.
4. Each of the substances in a mixture keeps it's own properties (same looking).
Can easily separate a mixture, e.g sand + salt. Combination of substances held
together by physical forces, not chemical forces.
5. Salad sauce.
6. A homogenous mixture is something that is combined or mixed together physically,
but you cannot see some substances when put together, which means it is evenly
spread. Solution is homogenous.
7. salt water (salt+water)
8. A heterogenous mixture is something that is mixed or combined together physically,
and you can see the substances all clearly, which means it is unevenly spread.
IT IS NOT COMBINED COMPLETELY!
9. Salad dressing.