Define the term Covalent Bond
A covalent bond is formed by a shared pair of electrons between two atoms.
RO
Related Chemistry A Level answers
All answers ▸Elemental analysis of a carbohydrate X showed the sample contained 48.7 % carbon and 8.1 % hydrogen by mass. Find the empirical formula of X.
An alcohol, X has an Mr of 74 and percentage composition of 64.9% Carbon, 13.5% Hydrogen and 21.6% Oxygen. It does not turn potassium dichromate (VI) green. Determine the structural formula of X, and state its name.
Give reasons for the increase in ionisation energy across a period in the table of elements.
Why do transition metals form coloured compounds?