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Discuss the strengths of conducting a laboratory experiment.

High control of variables - Establishes cause and effect - Easy to replicate unlike field experiments where control of variables is lower
AK
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How many evaluation points should I be making to get a A or A*

There is no specific guideline for how many evaluation points you should be making, as the essay is not typically marked on quantity. That being said, one student can be putting forth 1 point and another stu...
YH
Answered by Yasmin H. • Psychology tutor
6428 Views

How do you form the perfect tense?

The perfect tense states that an event/action has been completed or is in the past: you have done something, something happened, you were in a particular state etc. 1. The majority of verbs are formed in the...
RF
Answered by Rachel F. • French tutor
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If f(x)=8x-3, what is the inverse function?

To obtain the inverse fucntion basically all we have to do is re-arrange the equation and the do a small trick of swaping x and f(x), which can be done either at the start or at the end. Assuming we leavce i...
TA
Answered by Teresa A. • Maths tutor
12718 Views

Cu2+ (aq) reacts with ammonia to form the complex ion [Cu(NH)3)4]2+. Explain this reaction in terms of acid-base theory, and outline the bonding in the complex formed between Cu2+ and NH3

Ammonia acts as the Lewis base in this reaction by donating its lone pair of electrons, whilst Cu2+ (which is an electron deficient, electrophile) accepts the lone pair of electrons from the ammonia, making ...
SZ
Answered by Sophie Z. • Chemistry tutor
84722 Views