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Chemistry
GCSE

Why can graphite conduct electricity but diamond can’t even though they are both purely made of carbon?

Though graphite and diamond are made of only carbon, they both have a different structure. The structure of Graphite consists of carbon atoms covalently bonded to...

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Answered by Diana T. Chemistry tutor
9889 Views

Calculate the number of moles in 23.0g of CO2? ( relative atomic mass : Carbon=12, Oxygen=16)

Firstly we need to work out the molecular mass of CO2 . There is one carbon and two oxygens so we have to add the relative atomic mass (Ar) of one carbon and two oxygens. From the quest...

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Answered by Dilan B. Chemistry tutor
5988 Views

Give an advantage of hard water.

Hard water tastes better.

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Answered by Angus B. Chemistry tutor
1980 Views

You have 10g of Sodium Carbonate, how many moles do I have to 2dp?

Sodium Carbonate is Na2CO3The molecular formula mass is 2xNa + 1xC + 3xO 2x23 + 1x12 + 3x16 = 106 g/mol m = 10g Mr = 106 g/moln=m/Mrn = 10/106 = 0.09 mol

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Answered by Sophie B. Chemistry tutor
4099 Views

What is an atom?

Atoms are the smallest particle of matter that cannot be divided and have a nucleus which contains protons and neutrons with electrons surrounding it in energy levels.

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Answered by Shazna B. Chemistry tutor
2485 Views

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