Search our library of homework questions

Top answers

All subjects

All levels

How do I plan an essay?

Example question: How has Arthur Miller made The Requiem a poignant ending to the play?Start by reading the question carefully. In this question, a key word is ‘how’: this question is asking you to explai...

Answered by Shannon H. • English Literature tutor

3382 Views

How do you differentiate simple algebra?

For differentiation you simply multiply the coefficient of the unknown variable that you are differentiating by the power of the coefficient, then minus one from the power. For example to differentiate 3x...

Answered by • Maths tutor

6676 Views

Using the % yield calculation (please state), what is the percentage yield for the reaction of calcium oxide with water to produce calcium hydroxide if the theoretical yield is 4.0g but only 1.5g is produced?

The equation for percentage yield is as follows:% yield = ([Actual mass of product obtained]/[Maximum theoretical mass]) x 100Therefore using this equation, we can obtain the

Answered by Adam T. • Chemistry tutor

2335 Views

Explain how neurons communicate across a synapse.

A neuronal action potential depolarises the pre-synaptic membrane (neuron 1) causing voltage-gated calcium channels to open.2) Extracellular calcium ions bind to receptors on the pre-synaptic membra...

Answered by • Biology tutor

2678 Views

Why are the walls of the left ventricle thicker than the walls of the right ventricle?

The human body possesses a double circulatory system, in which blood passes through the heart in two cycles. In the first cycle, the right ventricle only pumps blood as far as the lungs (to enable oxygena...

Answered by Henry W. • Biology tutor

12356 Views