Top answers

Why might ethnic minority migrants concentrate in the inner-city center? [4 marks]

Ethnic minority migrants often concentrate in the city center upon first settling in a new city due to the presence of cheaper housing usually found in these areas; migrants are often found to have relativel...
LK
Answered by Laura K. • Geography tutor
3231 Views

Why does ethanoyl chloride have a lower boiling point that pentanoyl chloride?

This question is referring to the size of molecule and its relation to boiling point. The boiling point is higher when the intermolecular interactions are weaker. Intermolecular interactions are weaker in sm...
TH
Answered by Tom H. • Chemistry tutor
4657 Views

How do you factorise a quadratic? Something like x^2 + 4x + 3

When factorising a quadratic the idea is to separate it into two brackets, so first, I usually write out the empty brackets like this; (x___)(x___) You then need to think of numbers that you can put in those...
JA
Answered by Jordan A. • Maths tutor
3847 Views

How does natural selection work to make a population look different?

We can break down the process of natural selection into a few steps: genetic variation within a population, a selective pressure which favours a particular trait, increased survival and therefore reproductiv...
NS
Answered by Natasha S. • Biology tutor
4015 Views

When do we use the verb ser and when do we use the verb estar?

In Spanish there are two different verbs for the verb "to be" in English, Ser and Estar. The two are not interchangeable, as they have two different uses. We use the verb ser when we are describing...
MN
Answered by Madeleine N. • Spanish tutor
3521 Views