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Calculate the relative formula mass of aluminium sulfate, Al2(SO4)3 (2 marks)

As the question is 2 marks, show working to ensure you get a mark even if answer is slightly wrongFrom periodic table you can see that the relative atomic masses are oxygen = 16; aluminium = 27; sulfur = 32(...
AS
Answered by Amy S. • Chemistry tutor
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Explain the reactivity of group 1 metals

The reactivity of group 1 metals increases as you go down the group. This is due the number of electron shells increasing, leading to the distance between the outermost electron and the nucleus. The increase...
JC
Answered by Jawad C. • Chemistry tutor
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Describe and explain the difference in base strength between ammonia, primary aliphatic and primary aromatic amines.

Alkyl groups increase basicity because: 1) They push electron density onto the nitrogen atom, which makes the nitrogen lone pair more attractive to hydrogen ions. 2) They stabilise the positive charge on the...
SB
Answered by Sophie B. • Chemistry tutor
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State the crystal structures of SiO2 and CO2 and why one has a higher melting point than the other.

SiO 2 forms a giant covalent structure while CO 2 has a simple molecular structure.In the giant covalent structure of SiO 2 , strong covalent bonds hold the atoms together in the structure, while CO 2 has on...
FT
Answered by Fabian T. • Chemistry tutor
35082 Views

Draw a carbon dioxide molecule and describe the bonding?

Covalent bond (sharing a pair of elections between two non metal atoms)O = C = O
KM
Answered by Krishna M. • Chemistry tutor
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