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Yr 8 > Topic 6 Chemical Equations and Reactions > Flashcards

Topic 6 Chemical Equations and Reactions Flashcards

1
Q

What is an element

A

Made up of one type of atom for example oxygen is made up of oxygen atoms only

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2
Q

What is a compound

A

Made up of 2 or more elements chemically joined together e.g. Water is H20

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3
Q

What is a mixture

A

Made up of elements or compounds and is easy to separate

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4
Q

Where are all the elements found

A

On the periodic table

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5
Q

Which element has the symbol C
Is it a metal or non metal

A

Carbon
NOn metal

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6
Q

What is the symbol of Magnesium

A

Mg

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7
Q

What is the symbol for Iodine

A

I

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8
Q

What element has the symbol Fe

A

Iron

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9
Q

What element has the symbol Zn

A

Zinc

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10
Q

What is the symbol for Potassium
Is it a metal or non metal

A

K
Metal

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11
Q

What are the 2 parts that make up an atom

A

Protons, neutrons and electrons

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12
Q

When substances react together what is the name of the substance made

A

The substance made is the product

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13
Q

What is observed when magnesium is burnt

A

A bright white light
It changes from being a silvery metal solid to a white powder

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14
Q

What is one safety precaution required when burning magnesium

A

Do not look at it directly - use darkened glass to look at it

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15
Q

What is the word equation for the reaction of burning magnesium

A

Magnesium + Oxygen ——-> Magnesium Oxide

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16
Q

What gas in air is needed to burn magnesium

A

Oxygen

17
Q

When 2 elements react together what is made

A

A compound

18
Q

When 2 elements react together the name of the product always has 2 names - the first name is the METAL and the second name tells you what the metal reacted with. The second element name will always end in IDE
What is the name of the product formed when Magnesium metal reacts with Suflur

A

Magnesium Sulfide

19
Q

What is the name of the product formed when Iron reacts with oxygen

A

Iron Oxide

20
Q

What is the name of the product formed when bromine reacts with zinc

A

Zinc is the metal so always goes as first name

Product is then Zinc Bromide

21
Q

If there are 3 elements then the metal name goes first. If the other 2 elements are carbon and oxygen a CARBONATE is formed.
If Zinc reacts with carbon and oxygen what is made

A

Zinc Carbonate

22
Q

If there are 3 elements then the metal name goes first. If the other 2 elements are nitrogen and oxygen a NITRATE is formed.
If Magnesium reacts with nitrogen and oxygen what is made

A

Magnesium Nitrate

23
Q

Look at the formula of the following compound - CuSO4. (the 4 number should be down low)
How many atoms of each element are there in this compound

A

1 Copper (Cu)
1 Sulfur (S)
4 Oxygen (O)

24
Q

What 3 things are needed in a combustion reaction

A

Warmth, Fuel, Oxygen

25
Q

What sort of reaction is a combustion reaction

A

An oxidation reaction - it needs oxygen

26
Q

What metal can rust

A

Iron or steel

27
Q

Rusting is an example of what type of reaction

A

Oxidation

28
Q

What is the compound name for rust

A

Iron Oxide

29
Q

What will make iron rust quicker

A

Water
Salt

30
Q

Give some examples of how rusting can be slowed down

A

painting
oiling moveable parts e.g. chain on bike
galvanised
chrome plate
sacrificial protection

Yr 8 (6 decks)

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