What is a covalent bond?
A covalent bond in an intramolecular bond which occurs when a pair of electrons is shared between two elements, usually two non-metals. The electrons shared are in the outer shell of the atom of each element, which each atom contributing one electron to the shared pair, leaving both atoms with a complete outer shell. Covalent bonding can be represented with dot and cross diagrams and displayed formula. Examples of molecules with covalent bonds include H2O, CO2 and H2.
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Related Chemistry GCSE answers
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What is ionic bonding?
In Stage 2 of a reaction, 40 kg of titanium chloride was added to 20 kg of sodium. The equation for the reaction is: TiCl4 + 4Na -> Ti +4NaCl Relative atomic masses (Ar): Na = 23 Cl = 35.5 Ti = 48 Explain why titanium chloride is the limiting reactant.