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Flashcards in Simple Chemical Reactions Deck (30)
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1

{remember Base + Acid = Salt + Water}

What salt is Hydrochloric Acid for?

Chloride

{example: Calcium + Hydrochloric Acid -> Calcium Chloride + Water}

2

What do you get when you mix Carbon and Oxygen?

Carbon + Oxygen -> Carbonoxide

3

Is burning coal in a fire a chemical or physical change?

Chemical

4

What is the most important result of a chemical change?

a NEW substance is made

6

What do you get when you mix Magnesium and Oxygen?

Magnesium + Oxygen -> Magnesium Oxide

9

What do you get when you mix Aluminium and Oxygen?

Aluminium + Oxygen -> Magnesium Oxide

10

{remember Base + Acid = Salt + Water}

What salt is Nitric acid for?

Nitrate

{example: Zinc + Nitric Acid -> Zinc Nitrate + Water}

11

Is adding salt to water a chemical or physical change?

Physical

12

Are physical changes reversible or irreversible?

Physical changes do not make a new substance so van be reversed easily, it is irreversible.

13

Is burning a candle a chemical or physical change?

Chemical

14

{remember Base + Acid = Salt + Water}

What salt is Sulphuric acid for?

Sulphate

15

Is making an ice lolly a chemical or physical change?

Physical

16

What do you get when you mix Sulphur and Oxygen?

Sulphur + Oxygen -> Sulphur Oxide

17

Is making wine a chemical or physical change?

Chemical

20

Is burning a sparkler a chemical or physical change?

Chemical

22

What do you get when you mix Ethanol and Oxygen?

Ethanol + Oxygen -> Carbon Dioxide + Water

24

Are chemical changes reversible or irreversible?

They make new substances so can't be reversed, so they are irreversible.

26

Is frying an egg a chemical or physical change?

Chemical

29

What do you get when you mix Calcium and Oxygen?

Calcium + Oxygen -> Calcium Oxide

30

Is adding sugar to water a chemical or physical change?

Physical

32

What is a fuel?

A fuel is a substance that releases energy when burnt in air and oxygen

33

How do you test for carbon dioxide?

Do the limewater test - if positive the limewater will go cloudy/milky

34

What do you get when you mix Iron and Oxygen?

Iron + Oxygen -> Ironoxide

35

What are the chemical equations for Methane, Ethanol and Candle Wax?

What do they all contain?

Methane = CH4
Ethanol = C2H6O
Candle Wax = C25H52

They all contain carbon.

36

What three things are needed for something to burn and how can we remove them?

Heat - Water
Fuel - Moving the fuel away from the heat
Oxygen - Blanket

39

Name five examples of chemical changes that may take place in a reaction

All below are acceptable:
-fizzing
-bubbling
-exploding
-temperature change
-colour change
-smell change

42

What is the Pop Test?

The Pop test is where you put a lit splint in to hydrogen {possibly to test for Acid?}

45

Name three processes that you see a chemical change in

All below are acceptable:
-wood burning to ash
-metal rusting on a gate
-bike rusting
-toast burning

47

What do you get when you mix Copper and Oxygen?

Copper + Oxygen -> Copperoxide

49

What is the chemical equation of MASH

MASH = Metal + Acid --> {makes} Salt + Hydrogen