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Chemistry
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explain ionic bonding in a giant ionic lattice?

Bonding is about the movement of electrons-electrons are NEGATIVELY charged-the electrons move to allow atoms to become more STABLE by having a full outer shell of electrons-The periodic table is useful t...

Answered by Maria A. Chemistry tutor
1615 Views

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 = ...

Answered by Amy S. Chemistry tutor
26393 Views

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 incre...

Answered by Jawad C. Chemistry tutor
1674 Views

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 ...

Answered by Sophie B. Chemistry tutor
7782 Views

State the crystal structures of SiO2 and CO2 and why one has a higher melting point than the other.

SiO2 forms a giant covalent structure while CO2 has a simple molecular structure.In the giant covalent structure of SiO2, strong covalent bonds hold the atoms together in...

Answered by Fabian T. Chemistry tutor
25102 Views

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