Describe the bonding in a water molecule.
The molecular formula for water is H20. Two hydrogen atoms and one oxygen atom form a covalent bond. Hydrogen is slightly positively charged and is attracted to oxygen which is slightly negatively charged. The atoms share outer shell electrons to obtain a full outer shell, making the molecule stable.
ES
Related Chemistry GCSE answers
All answers ▸Why does ice float on water?
What are the differences between covalent bond and an ionic bond? And can you give an example of each?
A student wishes to determine the concentration of sulfuric acid. They run a titration and discover that 62.5cm^3 is needed to neutralise 20cm^3 of sodium hydroxide of concentration 2moldm^-3. Work out the concentration of the acid.
Name and explain the process in which crude oil is separated into fractions. (5 marks)