Chemical Reactions + Acids and Bases

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created 8 years ago by chemistry_goo
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1

Chemical Equation

uses symbols and formulas to show the reactants and the products of a chemical reaction

2

Chemical Reaction

what happens to the reactant in the product

3

Formula

symbol that shows the relationship in a compound

4

Subscript

the amount of a compound (how much of each exist)

5

Reactant

the substance you start with (before the change)

6

Product

what is formed (substance)

7

Property Change

production of a new substance with properties different from the original

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Precipotate

solid formed from solution

9

Gas Production

formation of gases appearing as bubbles

10

Endothermic

absorbs energy (feels cold)

11

Exothermic

Releases energy (feels warm)

12

Acids

• Taste sour
• Reacts with metals and carbonates
• Turn blue litmus red
• pH < 7

13

Bases

• Tastes bitter
• Feel slippery
• Turn red litmus blue
• pH > 7

14

Indicator

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

15

pH

potential for hydrogen

16

pH Scale

range of values from 0-14 express concentration of H+ ions in a solution