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