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Why is an alloy harder than a pure metal?

The atoms in an alloy are of different sizes so the layers are distorted and therefore, due to a lack of proper layers harder from them to slide over each other.
AC
Answered by Anjalee C. • Chemistry tutor
9751 Views

How should I prepare for an English exam?

I would begin by reading and re-reading your texts at least two or three times before your exam, more if your revision timetable allows. Make notes and highlight key quotations and moments while doing this, ...
NE
Answered by Nathalie E. • English tutor
2617 Views

A = {multiples of 5 between 14 and 26}. B = {odd numbers between 14 and 26}. List the members of A∪B and A∩B.

First write down explicitly what the elements of A and B are.A={15,20,25}, B={15,17,19,21,23,25}. Remember ∪ means OR. So A ∪ B is the set of items which are in either A OR B. This is {15,17,19,21,23,25,15,2...
LP
Answered by Luke P. • Maths tutor
16473 Views

Please expand the following brackets: (x+3)(x+5). Give your answer in its simplest form.

So how I would start to solve this problem is by using a method called the claw method (because it looks like a claw).So in order to expand the brackets, we need to multiply each term in the first bracket by...
CL
Answered by Clarence L. • Maths tutor
4639 Views

How do you solve an equation like: 5/(x+2) + 3/(x-3) = 2?

Multiply every term by a denominator to eliminate it;5 + 3(x+2)/(x-3) = 2(x+2)5 + 3x+6/(x-3) = 2x+45(x-3) + 3x+6= (2x+4)(x-3)2) simplify5x-15+3x+6=2x 2 -12+4x-6x8x-9=2x 2 -12-2x2x 2 -10x-3=03) use the equati...
TH
Answered by Tom H. • Maths tutor
6505 Views