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Copy - Chemistry 0620 > Ch 15: Water and Aqueous Systems > Flashcards

Ch 15: Water and Aqueous Systems Flashcards

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1
Q

What two properties of water result from hydrogen bonding?

A

High surface tension and low vapor pressure.

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2
Q

The structure of what is a regular open framework of water molecules arranged like a honeycomb?

A

Ice

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3
Q

What is homogeneous?

A

Evenly mixed, uniform throughout.

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4
Q

What is the substance that is dissolved in?

A

Solvent

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5
Q

What is the most common and most important solvent?

A

Water

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6
Q

What is the substance that dissolves?

A

Solute

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7
Q

Determining the solute and solvent: liquid –> solid

A

The liquid is always the solent; solid is always the solute.

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8
Q

Determining the solute and solvent: substance in greater quantity is usually the _______.

A

solvent

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9
Q

As individual solute ions break away from the _______, the __________ and __________ charged ion become surrounded by _______ molecules and the ionic crystal _________.

A

crystal
negatively and positively
solvent
dissolves

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10
Q

What is a solution?

A

A homogeneous mixture of particles that are molecular size or smaller.

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11
Q

What is salt and water an example of?

A

Solution

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12
Q

What are the four types of solutions?

A

Solid –> liquid
Gas –> liquid
Gas –> gas
Liquid –> liquid

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13
Q

What is the most common type of solution?

A

Solid –> liquid

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14
Q

What type of solution is salt and water?

A

Solid –> liquid

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15
Q

What type of solution is carbonated soda?

A

Gas –> liquid

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16
Q

What type of solution is air?

A

Gas –> gas

17
Q

What type of solution is molten metal?

A

Liquid –> liquid

18
Q

What is a mixture of metals called?

A

Alloy

19
Q

Why are all ionic compounds electrolytes?

A

They dissociate into ions.

20
Q

What does dissociate mean?

A

Broken apart

21
Q

In writing a formula of a hydrate, what is used to connect the formula of the compound and the number of water molecules per formula unit?

A

a dot

22
Q

What is the equation to find the percent water?

A

Mass of water / mass of hydrate X 100%

23
Q

How does a suspension differ from a solution?

A

The particles of a suspension are much larger and do not stay suspended indefinitely.

24
Q

The particles are visible.

A

Characteristics of a mixture

25
Q

The particles settle out.

A

Characteristics of a mixture

26
Q

Particles are big enough to be filtered out.

A

Characteristics of a mixture

27
Q

What is a mixture that is not a true mixture because of the Tyndall Effect?

A

Colloid

28
Q

What is gelatin an example of?

A

Colloid

29
Q

Colloids have particles _______ than those in suspensions and ______ than those in solutions.

A

smaller

larger

30
Q

Light bounces off particles in the colloid during this:

A

Tyndall Effect

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