Test

Chemistry 1a

tt1hollow 10 preguntas

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Preguntas del test (10)

1How many electrons does oxygen have?
1. A8
2. B16
3. C14
4. D4
2How many electrons are in the outer shell of Magnesium (Mg)?
1. A1
2. B8
3. C2
4. D4
3A compound is two or more atoms that have a chemical bond. It is usually hard to separate them once this bond has been formed.
1. AVerdadero
2. BFalso
4Atoms are lost in chemical reactions.
1. AVerdadero
2. BFalso
5Limestone can be used for many different things. Tick all the boxes, limestone is not used to make.
1. ABuildings
2. BGlass
3. CWater bottles
4. DComputers
5. EPavements
6Making things from limestone causes pollution?
1. AVerdadero
2. BFalso
7Nearly all of the elements on the periodic table are non-metals.
1. AVerdadero
2. BFalso
8What is commonly used to extract Iron from it's ore?
1. ABlast Furnace
2. BElectrolysis
3. CA hot catalyst
9What method is used to separate crude oil into different substances?
1. AFractional Distillation
2. BBlast Furnace
10kerosene is used to make which product?
1. AJet fuel
2. BCar fuel
3. CTrain fuel