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Science year 8 > Physics acids & alkalis > Flashcards

Physics acids & alkalis Flashcards

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Biology 101 flashcards
1
Q

What has a PH of 1

A

Stomach acid

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2
Q

What has a PH of 2

A

Lemon

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3
Q

What has a PH of 3

A

Vinagar

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4
Q

What has a ph of 4

A

Tomatoes

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5
Q

What has a ph of 5

A

Coffee

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6
Q

What has a ph of 6

A

Milk

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7
Q

What has a ph of 7

A

Water

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8
Q

What has a ph of 8

A

Blood

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9
Q

What has a ph of 9

A

Baking soda

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10
Q

What has a ph of 10

A

Stomach tablets

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11
Q

What has a ph of 11

A

Ammonia solution

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12
Q

What has a ph of 12

A

Soap

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13
Q

What has a ph of 13

A

Bleach

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14
Q

What has a ph of 14

A

Drain cleaner

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15
Q

What is pH 7 called

A

Neutral

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16
Q

Ph below 7

A

Acid

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17
Q

What is pH above 7

A

Alkali

18
Q

What has a ph of 0

A

Battery

19
Q

What is a sting from a bee

A

Acid

20
Q

What is a sting from a wasp

A

Alkaline

21
Q

What is a base

A

Something that neutralises an acid

22
Q

Are bases soluble in water

A

Yes

23
Q

What is a soluble base

A

An alkaline

24
Q

Independent variable

A

One you change

25
Q

Dependent variables

A

One that’s measured

26
Q

Control variables

A

One that is kept the same

27
Q

Calcium chloride magnesium nitrate and copper sulfate are all

A

Salts

28
Q

What is a salt

A

A compound

29
Q

Acid + base ->

A

Salt + water

30
Q

Acid+ metal ->

A

Salt + hydrogen

31
Q

Acid + metal carbonate ->

A

Salt + carbon dioxide +water

32
Q

What part of the salts name does metal give

A

First

33
Q

What part of the salts name does the salt give

A

Second

34
Q

Start of the equation =

A

Reactants

35
Q

End of the equation

A

Product

36
Q

Ending in ide means what

A

Only contains 2 elements

37
Q

Ending in ate or ite means what

A

3 or more oxygen always 1

38
Q

Most reactivate half

A

Potassium sodium calcium magnesium aluminium carbon zinc iron

39
Q

Least reactive half

A

Tin lead hydrogen copper silver gold platinum

40
Q

When does blue litmus paper change it’s colour when it is put in acid neutral or alkali

A

Acid it turns red

41
Q

When does red lipmas paper change its color when it has been put in acid neutral or alkali

A

Alkali it turns blue

42
Q

What does pH stand for

A

Potential for hydrogen

Science year 8 (1 decks)

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