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Science Year 9 > Reactions of Metals > Flashcards

Reactions of Metals Flashcards

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1
Q

What is an Element?

A

A simple substance made up of only one atom (one particle) and can not be made into anything simpler.

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2
Q

What is a Molecule?

A

Molecules can be compounds or elements because molecule are when particles are joined together.
Molecules are two or more atoms chemically bonded.

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3
Q

What is a Compound?

A

A substance that is made up of more than one atom/ element chemically bonded together.
e.g carbon + oxygen —–> carbon dioxide

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4
Q

What is lead?

A

An Element

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5
Q

Aluminium + Iron Oxide —> ?

A

Iron + Aluminium Oxide

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6
Q

What is a Mixture?

A

A mix of elements and compounds which are not chemically bonded.

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7
Q

What are the physical properties of Metals?

A 
Shiny
Hard
High density
Strong
High melting and high boiling points
Good conductors of heat and electricity
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8
Q

Why is Aluminium used for drink cans?

A

It is non-toxic and it has a low density.

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9
Q

What is Hydrochloric acid?

A

Chloride

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10
Q

Draw and label the basic diagram of an atom:

A

**COMING SOON**

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11
Q

What is pH1?

A

A strong acid

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12
Q

How would you separate Iron fillings and sulphur?

A

Using a magnet, place it close to the mixture and the iron fillings should attach to the magnet.

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13
Q

What is the name of the reaction between an acid and an alkali?

A

Neutralisation

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14
Q

What is copper used for?

A

House electric wiring because it is a good conductor of heat.

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15
Q

How can you test the pH of a solution?

A

By using a universal indicator or litmus paper.

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16
Q

What are the properties of alkalis?

A 
High pH
Soapy/slimy
Corrosive
Soluble bases
Makes salts by neutralising acids
17
Q

What are the properties of acids?

A 
Low pH
Tastes sour
kills some cells
Makes hydrogen
Makes carbon dioxide
18
Q

Why does bronze not rust?

A

Bronze is mostly made up of copper which doesn’t rust

Science Year 9 (6 decks)

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