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Explain why the reactivity of the elements in group 1 increases as we go down the periodic table?

The reactivity of group 1 metals increases as we go down the periodic table because as we go down the group the electrons are further away from the nulceus as the number of shells increase and therefore the ...
SK
Answered by SUNIYA K. • Chemistry tutor
23475 Views

How should I write a letter in Spanish?

As with writing a letter in English, it is important to adopt the correct register and tone for the person you are writing to. To open your letter, use one of the following options, picking the best one to s...
CS
Answered by Catherine S. • Spanish tutor
11970 Views

Explain how Hitler rose to power.

Hitler rose to power for a variety of reasons. Firstly, he was a charismatic leader and a great orator. He appealed to the German people following WW1. However, his rise to power was only enabled by events o...
AN
Answered by Andrew N. • History tutor
3164 Views

Solve for x 2x +3 + (4x-1)/2 = 10

2x +3 + (4x-1)/2 = 10 The divisor (2) is the biggest problem right now so we need to get it on its own... (4x-1)/2 = 10-2x-3 Equation has been rearranged! 4x-1 = 2(10-2x-3) Now we can eliminate the divisor b...
SH
Answered by Shannon H. • Maths tutor
5898 Views

Find the centre and radius of the circle with equation: x^2 + y^2 -4x +8y = 5, and determine whether the point (7,-4) lies on the circle.

First we complete the square on the equation of the circle to obtain: (x-2)^2 -4 + (y+4)^2 -16 = 5. Re arrange : (x-2)^2 + (y+4)^2 = 25 General equation of a circle: (x-a)^2 + (y-b)^2 = r^2, with centre (a,b...
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Answered by Alec S. • Maths tutor
6739 Views