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Rate of reaction is a change in concentration of a reactant or product, per unit time, measured in dm³s-1. You can calculate the rate of reaction from the graph- plot the graph of concantration...

To answer this question, we must use our knowledge of integration and differentiation. 
First, we look at the information given to us. We have been told that the gradient of the curve is given by dy/...

The atomic number, Z, is the number of protons in the nucleus. The mass number ,A, is the total number of protons and neutrons in the atom.

Equation one: 3y - 7x = 15

- Double it and re arrange   3y - 7x = 15 goes to 3y = 7x + 15 goes to 6y = 14x + 30 we name this equation 3

Equation two: 2y = 4x +12

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Start with looking at the form of the poem: things like the number of stanzas, how many lines they are composed of, and how they are arranged, as well as the overall length. Do not just state the arran...