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How would you name complex organic compounds?

How many carbons are in the longest carbon chain? Prefixes: meth- (1), eth- (2), prop- (3), but- (4), pent- (5), hex- (6) What functional groups are present? [GCSE] Suffixes: -ene (C=C/alkene), -yne (C=-C/al...
SJ
Answered by Sneha J. • Chemistry tutor
5920 Views

Dave and Chris split £24 in the ratio 2:1, how much does each person get?

With ratio questions we first have to look at the ratio split that the question wants. In this case is is 2:1, first sum up the two numbers that make the ratio, 2 and 1, to get 3. Then divide the number that...
MC
Answered by Matthew C. • Maths tutor
34653 Views

If 3x+6x+3=21, find the value of x

To start, i would put all the x's on one side of the equation and the two numbers on the other side of the equation. However be careful when moving the 3 as when we move it over the equals symbol its sign in...
HC
Answered by Henry C. • Maths tutor
5860 Views

2.5 x 100

250
SR
Answered by Sara R. • Maths tutor
6873 Views

When do you use Mode, Mean and Median

You should use the mode if the data is qualitative (colour etc.) or if quantitative (numbers) with a clearly defined mode (or bi-modal). It is not much use if the distribution is fairly even. Median You shou...
VH
Answered by Varad H. • Maths tutor
15717 Views