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Use the structure of sodium chloride to explain why it has a high melting point. (2 marks)

There are strong electrostatic forces of attraction between oppositely charged ions within sodium chlorides giant lattice. The strong electrostatic forces must be broken in order to melt sodium chloride. Sig...
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Answered by Evie C. • Chemistry tutor
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The pH of pure water can vary depending on the temperature it is held at. Does that mean pure water can be acidic or alkaline?

Interestingly, pure water will always be neutral, regardless of pH. To understand why, we have to properly look at what pH means. pH is a measure of the number of free H+ ions in a solution or liquid. The am...
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Draw a dot and cross diagram to show the bond present in Sodium Chloride (NaCl). State what type of bonding this is and the type of structure this compound forms.

[draw diagram on the whiteboard]Atoms are most stable when they have the maximum amount of electrons in their outer shell (usually 8)Na is a metal in Group I of the periodic table so it has 1 electron in its...
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Answered by Philip B. • Chemistry tutor
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What does a reaction between acid and base give?

Acid + Base = Salt + Water
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Answered by Sophia P. • Chemistry tutor
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What are isotopes?

Isotopes are a variant of a particular chemical element in the Periodic Table. They have the same atomic number, therefore the same number of protons and electrons. However they have a different number of ne...
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Answered by Priya A. • Chemistry tutor
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