Chap 6-Acids, Bases, and Solutions

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1

Suspension

a mixture in which particles can be seen and easily separated by settling or filtration

2

Solution

a very well mixed mixture, having the same properties throughout

3

Solvent

the part of a solution that is present in the largest amount and dissolves a solute

4

Solute

the part of a solution present in a lesser a mount and dissolved by the solvet

5

Colloid

a mixture with small undissolved particles that do not settle out

6

Dilute Solution

a mixture that has only a little solute dissolved in it

7

Concentrated Solution

a mixture that has a lot of solute dissolved in it

8

Solubility

a measure of how well a solute can dissolve in a solvent at a given temperature

9

Saturated Solution

a mixture that contains as much solute in it as possible at a given temperature

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Unsaturated Solution

a mixture in which more of the same solute can be dissolved

11

Supersaturated Solution

a mixture that has more dissolved solute than is predicted by its solubility at a given temperature

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Acid

a substance that has a sour taste, reacts with metals and carbonates, and turns blue litmus red

13

Indicator

a compound that changes color when in contact with an acid or a base

14

Base

substance that tastes bitter, feel slippery, and turn red litmus blue

15

Hydrogen Ion

a positive charged ion (H+) formed of a hydrogen atom that has lost its electron

16

Hydroxide Ion

a negatively charged ion (OH-) made of oxygen and hydrogen

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Acid Rain

rainwater that has more acidic than normal rainwater

18

Neutralization

a reaction between an acid and a base

19

Salt

an ionic compound that can form from the neutralization of an acid with a base

20

Digestion

the process that breaks down complex molecules of food into smaller molecules

21

Mechanical Digestion

the physical process that tears, grinds, and mashes large food particles into smaller ones

22

Chemical Digestion

the process that changes large food molecules into smaller molecules

23

pH Scale

a range of values from 0 to 14 that expresses the concentration of hydrogen ions in a solution