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Explain why graphite conducts electricity. The answer should include structure and bonding of graphite.

Each carbon atom in graphite forms 3 covalent bonds, which means there is one delocalised electron per carbon atom. These delocalised electrons can move through graphite and carry charge.
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Answered by Maria S. • Chemistry tutor
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The halogens are elements in Group 7. Bromide is in Group 7. How many electrons are there in the outer shell of a bromine atom? (1 mark)

7 electrons.
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Answered by Maria S. • Chemistry tutor
5899 Views

Using collision theory, explain why increasing the concentration of a reactant increases the rate of reaction.

Chemical reactions occur when reacting particles collide with energy equal to or greater than the activation energy . By increasing the concentration of reactants, there are more reacting particles present, ...
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What will be the resulting molecule if carbon-14 underwent beta decay?

For beta decay, the atomic mass (top number) stays the same and the atomic number (bottom number) increases by one.This will give a nitrogen molecule and beta particle.
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Answered by Caitlin W. • Chemistry tutor
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How would you preform the flame test to identify the presence of Sodium in a solution? (3Marks)

Using a clean nichrome wire dip the loop into the solution 2) Hold the loop in the blue flame of a bunsen burner 3) Observe the colour. In this case it will be Yellow.
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