Top answers

Why does ice float on water?

When water freezes into ice, the H 2 O molecules form Hydrogen bonds between each other and arrange themselves into an open lattice structure. This causes the molecules in ice to be further apart from each o...
JC
Answered by James C. • Chemistry tutor
30987 Views

Why did Partition occur in Ireland in 1922?

This question should be answered with reference to a number of factors, which should be laid out and clearly signposted in the introduction. The key factors to discuss are: Protestant Ulster Unionism vs Cath...
JL
Answered by Jennifer L. • History tutor
3517 Views

Describe the process of breathing out.

Firstly, the intercostal muscles contract. This causes the ribcage to move upwards and outwards. The diaphragm also contracts. This all has the combined effect of increasing the volume of the lungs. As a res...
JZ
Answered by Julia Z. • Biology tutor
5518 Views

A company is producing a one-page flysheet 24 cm high by 18 cm wide. It will have a text area in the centre which has a margin of the same width all the way around. The text must occupy exactly half of the total area:

18*24=432 432/2= 216 Therefore area of text must equal 216. And the margin must be the same width all the way round. Therefore, (24-x)(18-x)=216, 432-24x-18x+x 2 =216, 216-42x+x 2 =0, (x-36)(x-6)=0. x=36 and...
JS
Answered by Joshua S. • TSA Oxford tutor
6940 Views

¿Cuáles son los peligros de fumar para la salud?

Sin duda, hay muchos peligros de fumar para la salud. Uno de los peores peligros es el riesgo del cáncer de los pulmones. Fumar cigarillos produce un riesgo mayor de enfermedad de los pulmones y aumeta la pr...
BS
Answered by Ben S. • Spanish tutor
2766 Views