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Possessive pronouns in Italian are used to express possession of a specific thing (or person) and they are the equivalent of what in English would be “mine,” “yours,” “his,” “hers,” etc. You must remember th...

=(5a x 3a) + (5a x -4b) + (3a x -2b) + (-2b x -4b) =15a^2 - 20ab - 6ab + 8b^2 =15a^2 - 26ab + 8b^2

A reflected microwave will have a decreased wavelength, increased frequency and same speed when compared to an emitted microwave.

Distillation is a process used to seperate a liquid from a mixture of different liquids. It works on the basis that liquids have different boiling points. A common example is ethanol and water. The liquid wi...

Crude oil is separated by fractional distillation. Crude oil is heated to vaporize the different hydrocarbons in a tank which is cool at the top and hot at the bottom. The vapours then rise and the different...