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What is empirical formula and how is it worked out?

This is the lowest/simplest ratio of the molecule. For example propene has the formula C₃H₆

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What is Federalism?

Federalism was Madison's attempt to find a compromise between the Hamiltonains and Jeffersonians. They were the Founding Fathers of the US Constitution.

The term Federalism means a vertic...

Answered by Hannah U. • Politics tutor

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What is the difference between a scalar and a vector quantity?

A scalar quantity has magnitude only - for example distance.A vector has magnitude and direction - for example gravity (acceleration tow...

Answered by Emma W. • Physics tutor

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What is the difference between diffusion and active transport?

Diffusion is the movement of particles from a high concentration to a low concentration. This process does not require energy. An...

Answered by Emma W. • Biology tutor

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If 2x + y = 13 and 3x - y = 12, what are the values for x and y?

To solve these simulataneous equations we need to use substitution:If 2x + y = 13 then y = 13 - 2xTherefore 3x - y = 12 can be rewritten as 3x - (13 - 2x) = 12We can expa...

Answered by Emma W. • Maths tutor

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