Search our library of A Level questions

Top answers

All subjects

A Level

How do I write the full equation of a cell from two half cells? (basic, with matching electron counts and no water/acid)

Lets use an example:Fe³⁺(aq) + e^- <==> Fe²⁺(aq) E⁰ = +0.771 VLi⁺(aq)+ e^- <==> Li(s) E⁰ = -3...

2279 Views

Find the general solution to: d^(2)x/dt^(2) + 7 dx/dt + 12x = 2e^(-t)

"General Solution = Complimentary Function + Particular Integral"AE: m² + 7m + 12 = 0 solve for m(m+3)=0m = -4 or -3Hence the Complimentary Function = Ae^-4t

Answered by Edward O. • Further Mathematics tutor

3278 Views

What is the equation for photosynthesis?

6CO2 + 6H2O => (light energy) => C6H12O6 + 6O2

Answered by Melanie T. • Biology tutor

3090 Views

"Discuss the disadvantages of judicial precedent." AQA A Level Law, 2017.

Judicial precedent is the incremental approach of justices in following previous case law decisions in order to maintain a stable basis for UK common law.
One disadvantage is that, due to the uncodif...

Answered by Ed G. • Law tutor

5460 Views

How should we translate verbs ending in -ing into French?

Unlike in English, French only has one form of the present tense. This means that, no matter how tempting it may be, both 'I do my homework' and 'I am doing my homework' should be translated in exactly th...

Answered by Daniel P. • French tutor

5036 Views