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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...

The chemical equation is as follows:

CaCO_3(s)+2HCl_(aq)--->CO_2(g)+H₂O(l)+CaCl_2(aq)

The general formula for an acid reacting with a ca...

DNA requires one template strand that is conserved, in order for the nitrogenous bases to order themselves correctly in the new polynucleotide chain. This relies on the complimentary base pairing C-G and ...