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Complete the balanced equation for the overall reaction in a hydrogen fuel cell. _ H2 + ___ > _ H2O

Hydrogen fuel cells are really important as they can be used to power electrical cars, so it's something that a lot of scientists are looking into at the moment. We need to balance this equation, so we ne...

KB
Answered by Kyra B. Chemistry tutor
8681 Views

What best explains the success of the first crusade?

Overview : The success of the First Crusade can be best explained with multiple factors contributing, some with more effect than others. These factors include Spiritual devotion, Military tactics, strong ...

Answered by History tutor
13585 Views

A and B are points on a circle, centre O. BC is a tangent to the circle. AOC is a straight line. Angle ABO = x°. Find the size of angle ACB, in terms of x. Give your answer in its simplest form. Give reasons for each stage of your working.

(This question is from the Edexcel Higher GCSE paper 2018) As BC is a tangent to the circle, we know that angle OBC must be a right angle (90 degrees)We also know that lines OA and OB are both the same le...

RT
Answered by Rachel T. Maths tutor
11566 Views

Outline the process of protein synthesis (8 marks).

Firstly, we need to understand what the question title is asking... 'Outline' means to roughly describe and give a summary of the key points of a 'process' which is a ser...

NH
Answered by Natalie H. Biology tutor
10707 Views

How to structure an exam answer

First you must allocate time to feature spot the text after the reading time set, this can be about 5 minutes. Look for where ambitious terminology can be used, for example, if amelioration (language chan...

JL
3697 Views

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