Top answers

What is Ionic bonding?

Ionic bonding is bonding between a metal and a non-metal . This happens due to a transferal of electrons. For example a metal from group 2 such as Magnesium bonding to a non-metal from group 6 such as oxygen...
BB
Answered by Bobby B. • Chemistry tutor
2955 Views

Mitosis is important in the life of a multi-cellular organism. Explain why and how mitosis works.

Mitosis allows for growth and development of a living organism. The genetic material inside each cell is doubled as the chromosomes are doubled. The chromosomes line up in the centre of the cell and are pull...
HG
Answered by Helen G. • Biology tutor
3879 Views

How can I figure out what percentages to use in word problems?

Always remember that all the information you need to find the answer is in the word problem. It is always helpful to write out essential numbers at the top of your working so that you can better visualise th...
CS
Answered by Charlotte S. • 13 Plus tutor
2394 Views

How do I add fractions?

The most important thing to remember about adding fractions is that the denominators of both fractions must be the same value in order for you to add them together. Where the denominators of each fraction ar...
CS
Answered by Charlotte S. • 11 Plus tutor
3260 Views

How do you rationalise surds?

Irrational surds occur when a fraction's denominator is a surd, leaving the fraction in a messy way. To rationalise surds, the general rule is that you multiply the both the denominator and the numerator of ...
BM
Answered by Baraka M. • Maths tutor
3759 Views