Science test 4/26-27

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37 Terms

1
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What does decomposition look like?

AB>A+B

2
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What does single replacement look like?

Ab+C>AC+B

3
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What does double replacement look like?

AB+CD>AB+BD

4
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What does synthesis look like?

A+B>AB

5
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What does F stand for?

Fizz

6
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What does A stand for?

Aroma

7
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What does C stand for?

Color change

8
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What does T stand for?

Temperature change

9
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What do the Ss stand for?

New substance and solids

10
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What pH range means acid?

1-6

11
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What pH range means base?

8-14

12
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Blue to red means?

Acid

13
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Red to blue means?

Base

14
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What do acids taste like?

Sour

15
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What do bases taste like?

Bitter

16
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Examples of acids?

Fruits and milks

17
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Examples of bases?

Cleaners and baked goods

18
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What is an example of acid + base?

Water + salt

19
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What is H+?

Acid

20
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What is OH-?

Base

21
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What does endothermic mean?

Heat going into cold

22
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What does exothermic mean?

Heat leaving heat

23
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What is the law of Conservation of Mass?

Elements of one side appear on the other side, they can be measured in closed systems.

24
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Does color change always mean a chemical change occurred?

No

25
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Properties of hydrogen are…

-Explodes w/ flame

-Colorless and odorless

26
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Properties of oxygen…

-Makes fires stronger

-Colorless and odorless

27
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Properties of acetylene..

-Burns w/oxygen

-Colorless

28
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Properties of carbon dioxide…

-Kills fires

-Colorless and odorless

29
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What is considered a strong acid?

1-4 pH

30
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What is considered a strong base?

12-14 pH

31
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What does pH measure?

Power of hydrogen

32
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What do catalysts do?

Speed up chemical reactions

33
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What does aqueous mean?

Mainy watery substance

34
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What does it mean when phenolphthalein turns pink?

Basic

35
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What color does methyl orange paper turn as a base?

Yellow

36
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What color does methyl orange paper turn as an acid?

Red/pink

37
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What is neutralization?

A reaction between a base and acid which forms water and salt.