Search our library of homework questions

Top answers

All subjects

All levels

Write 120 as a product of its prime factor

What are Prime Numbers?
Prime numbers by definition are numbers that cannot be divided by any other number but itself and 1. For e.g. 2 is a prime as it can only be divided by 2 and ...

Answered by Kai P. • Maths tutor

26522 Views

What is the difference between the past and the imperfect tense?

French has two commonly used past tenses. These are the past (passé composé) and the imperfect (imparfait). Although they can be used in similar situations, there are some differences between them, and un...

Answered by Miriam F. • French tutor

3344 Views

Outline an example of a reflex action

Stimulus - receptor - sensory neuron - (dorsal) spinal cord - (ventral) spinal cord - motor neuron - muscle/effector - response

Answered by Tunmise A. • Biology tutor

2368 Views

State the crystal structures of SiO2 and CO2 and why one has a higher melting point than the other.

SiO₂ forms a giant covalent structure while CO₂ has a simple molecular structure.In the giant covalent structure of SiO₂, strong covalent bonds hold the atoms together in...

Answered by Fabian T. • Chemistry tutor

28805 Views

Please could you explain to me when past participles must agree when using the passé composé? (NB in my experience, this was an issue for A-Level students of French too)

There are two cases when the past participle must agree in both gender and number in French. The first is when we use être as the 'auxiliary verb'. If we were to say, 'this man died', in French we would s...

Answered by Chris C. • French tutor

2180 Views