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A catalyst lowers the activation energy of a reaction. It does this by providing an alternative, lower energy pathway for the reaction. An example of this - a catalyst may form a complex with the reactant...

Electronegativity is the measure of the tendacy/ability of an atom to withdraw electron density in a chemical bonding pair of elcectrons. It is most commonly measured using the pauling scale.

32 mmol = 0.032 mol

75cm³ = 0.075dm³

n = c x v    so   c = n / v

c = 0.032mol/0.075 dm³ = 0.426moldm^-3

pH = -log[H+]

pH = -lo...

In diamond, each carbon atom forms 4 strong covalent sigma bonds with other carbons, resulting in a tetrahedral 3D arrangement of atoms where all the electrons are fixed in place or localised. In graphite...

Sodium and Magnesium are both metals, when they are solid they form a metallic lattice held together by the electrostatic force of attractive between the positive metal ions, and the negative delocalised ...