Test- Unit One Matter

Question 1

4. Which of the following is not a physical property

Answer 1

4. D

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Question 2

10. Three examples of physical changes are

Answer 2

10. B

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Question 3

14. _______ is another name for a homogeneous mixture

Answer 3

14. D

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Question 4

16. Increasing the surface area of a solid

Answer 4

16. A

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Question 5

25. Milk, paint and mayonnaise are all examples of

Answer 5

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Question 6

29. Which of the following liquids would be the most viscous

Answer 6

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Question 7

36. Fragrance of a flower

Answer 7

36. Pp

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Question 8

38. flammability of a substance

Answer 8

38. Cp

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Question 9

45. In terms of saturation how would you classify a KBr solution with a concentration of 90g in 100g of water at 10°c

Answer 9

Super saturated

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Question 10

50. A=?

Answer 10

50. Sublimation

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Question 11

53. Iron and oxygen react to form rust. What will happen to the mass mass of the rust compared to the mass of the iron and oxygen before the reaction? Explain why this will occur.

Answer 11

53. Same because of the law of conservation

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Question 12

54. List three points in the kinetic- molecular theory.

Answer 12

54. 1. All mater is made of particles
       
       2. Particles are in constant random motion
       3. Particles collide with each other and container they are in

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Question 13

60. Explain how salt dissociates in water

Answer 13

60. -H+ of water attract Cl-
    - O-2 of water attract Na+
    -attractive force pulls ions away from crystal
    - water surrounds each ion and continues until
    Ions are separated

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