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A chemist needs to neutralise aqueous hydrochloric acid solution (currently pH 1) to pH 7 or higher, so it can be safely disposed of. They have access to solid NaCl, NaBr and Na2CO3.

A) Which of the three solids should they add to the acid solution to achieve this? ans: Na2CO3 [1 mark] B) Hence give a balanced chemical equation showing the reaction of the hydrochloric acid with your chos...
AN
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Using diagrams, describe the difference between Ionic, Covalent and Metallic Bonding.

Ionic bonding is the electrostatic forces of attraction between a metallic and non-metallic ion. The metallic ion has a positive charge because it loses an electron. For example, with KCl (Potassium Chloride...
EB
Answered by Eliza B. • Chemistry tutor
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How do you prepare an insolvent salt by precipitation?

Firstly, add two solutions of soluble compounds. Eg when making MgCl 2 , add Magnesium Nitrate and Sodium Chloride, as these two solutions are soluble. Then, mix the two solutions together in a beaker, filte...
KH
Answered by Keira H. • Chemistry tutor
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Sodium and sodium chloride can both conduct of electricity under cetain conditions. Describe and explain the method of conduction for each species. (3)

Sodium metal can conduct electricity when solid or molten through the movement of delocalised electrons, which can carry charge. Sodium chloride is only conductive when molten or dissolved in solution, as th...
NK
Answered by Noah K. • Chemistry tutor
5399 Views

Why do group 1 elements get more reactive as you go down the group?

The atoms are composed of a positive nucleus surrounded by negative electrons. In order to ionically bond, each group 1 element wants to lose its outer electron to whatever it is going to bond to, eg Cl. As ...
TD
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