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find the sum of r from 0 to n of : 1/((r+1)(r+2)(r+3))

The solution like almost every Methods of Differences questions first involves putting the fraction into partial sums.At this point you would get 3 fractions which can be tricky to deal with. Following wh...

4966 Views

What is the passive voice and when do you use it in Spanish?

It is helpful to understand the passive voice in the context of its counterpart, the active voice. We see the difference between active and passive in these sentences:"The girl wrote an email."&...

GT
Answered by Grace T. Spanish tutor
1580 Views

How is tissue fluid formed?

Tissue fluid is the substance that bathes the cells in the body. It is the means by which materials are exchanged between the cell and blood as capillaries cannot reach every individual cell. Despite bein...

MY
Answered by Melissa Y. Biology tutor
40172 Views

Describe how you could form ethyl ethanoate using only ethanol as the starting material. Include all relevant reagents and conditions.

To perform the esterification, we are going to need to react a carboxylic acid with an alcohol (in this case). We already have the correct alcohol: ethanol. Therefore to get ethanoic acid we must oxidise ...

CM
Answered by Callum M. Chemistry tutor
5817 Views

Explain the difference in reactivity between benzene and phenol with bromine?

Phenol reacts with bromine at room temperature with no catalyst as the hydroxyl group activates the ring by donating a pi electron. This donated electron increases the electron density of the ring hence a...

RL
Answered by Reece L. Chemistry tutor
8459 Views

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