671934
Frage 1
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8
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16
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14
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4
Frage 2
Frage
How many electrons are in the outer shell of Magnesium (Mg)?
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1
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8
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2
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4
Frage 3
Frage
A compound is two or more atoms that have a chemical bond. It is usually hard to separate them once this bond has been formed.
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- True
- False
Frage 4
Frage
Atoms are lost in chemical reactions.
Antworten
- True
- False
Frage 5
Frage
Limestone can be used for many different things. Tick all the boxes, limestone is not used to make.
Image:
imagesCA73WBZR (image/jpg)
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Buildings
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Glass
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Water bottles
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Computers
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Pavements
Frage 6
Frage
Making things from limestone causes pollution?
Antworten
- True
- False
Frage 7
Frage
Nearly all of the elements on the periodic table are non-metals.
Antworten
- True
- False
Frage 8
Frage
What is commonly used to extract Iron from it's ore?
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Blast Furnace
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Electrolysis
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A hot catalyst
Frage 9
Frage
What method is used to separate crude oil into different substances?
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Fractional Distillation
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Blast Furnace
Frage 10
Frage
kerosene is used to make which product?
Antworten
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Jet fuel
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Car fuel
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Train fuel
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