Search over 10,000 free study notes

Fluorine, Chlorine, Bromine, IodineIf you write the electronic structure to start, F = 2,7, Cl = 2, 8, 7, Br = 2, 8, 8, 7, I = 2, 8, 8, 8, 7. This shows that they all have 7 outer electrons so we can tell...

First of all let's give some examples: 5^2=4x6+1 = 25 or 6^2 = 5x7+1 = 36. To prove it for every number let's call the number x (e.g. x was 5 and 6 in the cases above). Then the result we want to prove is...

Firstly, we know that it is an isosceles triangle, meaning that 2 of its sides are equal. In this case, the uneven side is given as x+4, so we can assume that the triangle has 3 sides: AB= X+3BC= X+3AC= X...

When adding fractions we need to make sure that we're adding numbers that are in the same proportion.Take for example 1/2 add 1/2, if we simply added the numerator and the denominator we would get 2/4 - w...

An enzyme is a biological catalyst that ensures important certain chemical reactions can take place. They speed up the rate of a reaction without being used up or changed. Maltase is an example of an enzy...