Those protons have a negative charge or a positive charge
A positive charge
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Those neutrons have a negative charge or a positive charge
They have no charge. They are neutral
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What does the nuclues contain
Protons and neutrons
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The number of protons are equal to the number of neutrons. True or false
True
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How many atoms consist of an element
Only one
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How is a compound made
By joining atoms together
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What is cracking
cracking means splitting up long chains of hydrocarbons
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How do you crack hydrocarbons
1. heat up the hydrocarbon to vaporize it (to turn it into a gas). 2. The vapor is then passed over a powered catalyst at a temperature of about 400 - 700 degree. 3. Aluminium oxide is the catalyst used
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what is the last stage of cracking a hydrocardbon
The long chain molecules is cracked on the surface of the speaks of catalyst
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what are alkenes
Alkenes are hydrocarbons which have a double bond
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Other cards in this set
Card 2
Front
Those neutrons have a negative charge or a positive charge
Back
They have no charge. They are neutral
Card 3
Front
What does the nuclues contain
Back
Card 4
Front
The number of protons are equal to the number of neutrons. True or false
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