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Properties Of Materials > Properties of Materials > Flashcards

Properties of Materials Flashcards

1
Q

What is the difference between a compound and a mixture?

A

Compounds are substances formed by the chemical combination of two or more elements. Mixtures are substances formed by physically mixing two or more substances together.

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2
Q

How does dissolving happen. Use particle theory to explain.

A

When the attraction between the particles of the solvent and solute are strong enough to overcome the attraction of the particles of the solute from one another.

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3
Q

What is a saturated solution?

A

A solution that contains the maximum amount of solute that can be dissolved under the condition at which the solution exists.

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4
Q

What is the solute?

A

A substance that is dissolved in a solvent

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5
Q

What is a solvent?

A

A solvent is any substance, usually liquid, which is capable of dissolving one or several substances

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6
Q

How does temperature affect the rate of dissolving?

A

Temperature affects dissolving because the higher the temperature the quicker the particles move and intermingle, which makes the dissolving process quicker.

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7
Q

A substance that will not dissolve in water is ____________

A

Insoluble

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7
Q

Solutions A and B have the same volume of solvent, but solution A has more solute particles in it than solution B.

Solution A is more ____________ than solution B

A

Concentrated

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8
Q

What is a saturated solution

A

When no more solute will dissolve in the solvent.

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9
Q

Sugar dissolves in water, so it is ______________

A

Soluble

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10
Q

Why do you draw the line in pencil for paper chromatography?

A

Because it is insoluble.

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11
Q

Which three factors effect the rate of dissolving?

A

Temperature
Stirring
Surface area
(or volume of water)

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12
Q

What temperature would sugar dissolve faster in. 10° or 50°.

A

50°

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13
Q

What is a filtrate?

A

A solution that has passed through a filter.

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14
Q

What is a mixture?

A

A substance made by mixing other substances together.

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15
Q

What is the difference between dissolving and melting?

A

Dissolving is the complete mixing of particles of a solid in a liquid to form a solution. Melting is the state of when a solid turns to a liquid.

16
Q

What is the difference between a solute, a solvent, and a solution.

A

Solute- The solid that is dissolved.
Solvent- A liquid in which other substances will dissolve.
Solution- A mixture formed when a solid dissolves in a liquid.
(SOLUTE dissolves in the SOLVENT to create a SOLUTION.)

17
Q

When 20g of salt is added to 100g of water what is the mass now?

A

120g (20g +100g = 120g

18
Q

What is the difference between transparent and opaque.

A

Opaque is not able to be seen through but transparent is see through.

19
Q

If you add 50g of water into a solution of sodium chloride. You have ________________ the solution.

A

Diluted

Properties Of Materials (1 decks)

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