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Describe how and explain why vegetable oils are hardened for use in foods. [5 marks]

Hydrogenation is used to add hydrogens to the vegetable oil molecules. This process gets rid of the double bonds in the molecular structure, making the molecules saturated, which lowers the melting point ...

NM
Answered by Nadia M. Chemistry tutor
4014 Views

A ladder 6·8m long is leaning against a wall. The foot of the ladder is 1·5m from the wall. Calculate the distance the ladder reaches up the wall.

We have a right angle triangle in this problem. We can use Pythagoras' theorem - the square of the hypotenuse is equal to the sum of the squares of the other two sides of the right angle triangle...

MV
Answered by Mohan V. Maths tutor
3895 Views

[equ1] 3y − 6x = 3 [equ2] y y x 2 − x + 2 2 = 2

Firstly start by rearranging [equ1] to get y = 2x + 1 . Then substitute this result into [equ2] this will give you (2x + 1) (2x ) x . Simplify the equation and subtract two from both sides to 2 − x + 1 + ...

AS
Answered by Alistair S. Maths tutor
4663 Views

The components of DNA and how they interact to form a double helix structure

(Answer supplemented with whiteboard annotations)

The structure of DNA consists of three pivotal structures. A deoxyribose pentose sugar made up of five carbons. An ionised phosphate group and a ni...

MR
Answered by Mizanur R. Biology tutor
3638 Views

How do I construct the French conditional tense for regular verbs?

To make the conditional tense in French you need to take the infinitive form of the verb, the form found in the dictionary, and add an ending onto it. These endings are:

Je (I) - ais

Tu (You...

HW
Answered by Henry W. French tutor
2602 Views

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