Explain how a covalent bond holds two atoms together.
The electrostatic forces of attraction between the shared pair of bonded electrons and the positively charged nuclei hold the atoms together.
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Related Chemistry GCSE answers
All answers ▸NaOH has a high melting point and conducts electricity in solution. H2O has a low melting point and does not conduct electricity. Explain, using the structure of each, why this is the case.
In a titration, 50 cm3 of sodium hydroxide with a concentration of 0.3 mol/dm3 was neutralised by 60 cm3 of hydrochloric acid. Calculate the concentration of the hydrochloric acid in mol/dm3.
Describe the trend in reactivity as you go down group 2 metals?
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