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Science 2nd Form > First End of Topic Test 😭 > Flashcards

First End of Topic Test 😭 Flashcards

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1
Q

What is a concentrated acid?

A

An acid with lots of acid dissolved in a bit of water

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2
Q

What is a Dilute Acid?

A

An acid that has a small amount dissolved in a measured amount of water

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3
Q

In acids the solvent is always _ _ _ _ _

A

Water

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4
Q

Acids are what?

A

A solution

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5
Q

Where would you find Hydrochloric acid?

A

The human stomach, to help digest food

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6
Q

What is nitric acid used in?

A

Fertilisers

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7
Q

What is Sulphuric Acid used in?

A

Car batteries

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8
Q

Ethanoic acid is in what?

A

Vinegar

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9
Q

Citric acid is in what?

A

Lemons, oranges and other citric fruits

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10
Q

What is carbonic acid in?

A

Fizzy drinks

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11
Q

Sodium hydroxide
(Caustic soda)

A

Used to make oven cleaners and drain cleaners

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12
Q

Calcium hydroxide (lime)

A

Used to treat soil which is too acidic for plants to grow properly

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13
Q

Magnesium hydroxide
(Milk of magnesia)

A

Used to make indigestion remedies

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14
Q

Ammonia

A

Used to make fluids which clean silver and brass

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15
Q

What colour does RED CABBAGE indicator go in acid?

A

Red/pink

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16
Q

What colour does RED CABBAGE indicator go in alkali?

A

Green

17
Q

What is LITMUS made of?

A

Lichens

18
Q

What pH number(s) is considered ‘strongly acidic’?
And what colour does it go?

A

0-2
Red

19
Q

What pH number(s) is considered ‘weakly acidic’?
And what colour does it go?

A

4-6
Orange/yellow

20
Q

What pH number(s) is considered ‘neutral’?
And what colour does it go?

A

7
Green

21
Q

What pH number(s) is considered ‘weakly alkaline’?
And what colour does it go?

A

8-9
Blue/green

22
Q

What pH number(s) is considered ‘strongly alkaline/weakly alkaline’?
And what colour does it go?

A

10-11
Dark blue

23
Q

What pH number(s) is considered ‘strongly alkaline’?
And what colour does it go?

A

12-14
Purple

24
Q

A substance is called a base if it is a _ _ _ _ _ _ _ _ _ _ or _ _ _ _ _ _ _ _ _ _ _ _ _ _
Eg. Copper oxide

A

Metal oxide, metal hydroxide

25
Q

Acids are substances that…

A

Dissolve in water and form a solution with pH less than 7

26
Q

Alkalis are substances that…

A

Dissolve in water and form a solution with a pH greater than 7

27
Q

An alkali is a _ _ _ _ _ _ _ base

A

Soluble

Science 2nd Form (4 decks)

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