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Sodium chloride is an ionic compound. It is made of sodium ions which have lost an electron to become positively charged (Na+) and chloride ions which have gained an electron to become negatively charged ...
An exothermic reaction is one where the products have less energy than the starting reactants. This means the reaction must give out energy, usually in the form of heat or sound. As a result of this, H ...
A fossil fuel is a substance like coal, oil, or natural gas formed from decayed plant or animal remains which can be burned to produce energy and power. Crude oil is separated by fractional distillation -...
Vegetable oils are unsaturated because they contain lots of carbon-carbon double bonds. If we react them with hydrogen at 60oC in the presence of nickel catalyst they will become saturated, also called ha...
A catalyst is something that changes the rate of a chemical reaction, without being used up during it.
A catalyst provides a different reaction pathway, which requires a lower activation energy tha...
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