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Ethanol, CH3CH2OH, can be converted into a carboxylic acid with two carbon atom. Name the carboxylic acid formed from ethanol and draw its structure. Show all bonds between atoms.

Ethanoic acid (CH3COOH)Clear structure of molecule must be shown. One C atom with existing three single bonds to three H atoms and a single bond with the other C atom. Second C atom has a double bond

Answered by Sophie O. • Chemistry tutor

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Expand and simplify (x-2)(2x+3)(x+1)

To simply this expression means to write this same expression in its lowest terms. The first step we need to do is expand two of these brackets, we will start with the bracket in the middle and the last ...

Answered by Shayma M. • Maths tutor

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Expand and simplify 3(m + 4) – 2(4m + 1)

You need to follow the basic rules of expanding brackets i.e. before doing any of the sums inside of the bracket (which would be impossible as you do not know the value of 'm'), you need to perform the ta...

Answered by Lizzie W. • Maths tutor

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For all values of x, f(x) = (x + 1)^2 and g(x) = 2(x-1). Show that gf(x) = 2x(x + 2).

f(x)=(x+1)^2g(x)=2(x-1)
gf(x)=2([(x+1^2)]-1) =2([(x+1)(x+1)]-1) =2([x^2+2x+1]-1) =2(x^2+2x) =2x(x+2)

Answered by Quamar Q. • Maths tutor

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How to solve the simultaneous equations: 3x+5y=19 and 4x+6y=22

First find a shared factor between the x's or the y's. Both 5 and 6 are a factor of 30. So 30/5 is 6 therefore we multiply the whole of equation 1 by 6 to get 18x+30y=114. Then 30/6 =5 so we multiply the ...

Answered by Rachel K. • Maths tutor

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