Top answers

What is the best way to revise for the exam(s)?

First of all, it is important to determine what kind of learner you are. There are many quizzes available online that can help you with this, or alternatively, you may be able to figure out which learner you...
TD
2992 Views

How to calculate acidic buffer solution pH, and how do they behave?

Example: Calculate the pH of a buffer solution which contains the weak monoprotic acid, propanoic acid (CH3CH2COOH), in concentration 0.1 moldm-3 and sodium propanoate in concentration 0.05 moldm-3. Ka of pr...
KH
Answered by Kareem H. • Chemistry tutor
24284 Views

How can we begin to explain the causes of the First World War?

The best way to tackle the question is first to understand what they are asking of you, and then look closely at how the question is structured because this is often a key to structuring your essay. In this ...
FR
Answered by Filipa R. • History tutor
4447 Views

Implement a function which checks weather a given number is prime and returns 1 if it is prime and 0 otherwise.

This function is not extremely complicated to implement and an easy approach (yet not extremely efficient as we shall see later) would be to check every single number from 2 up to 1 less than our number for ...
VN
Answered by Vlad N. • Ruby tutor
677 Views

Diamond is very hard because:

It is a giant covalent structure.
RM
Answered by Rifat M. • Chemistry tutor
3399 Views