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Make r the subject of the formula: 1/r -1/p = 1/t

Take the 1/p to the other side of the equation1/r = 1/t + 1/p2) Add the fractions together by making the denominators the same1/r = (p+t)/pt3) Cross multiple by multiplying each side of the equation by the o...
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Answered by Antonia A. • Maths tutor
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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."&quo...
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Answered by Grace T. • Spanish tutor
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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 being f...
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Answered by Melissa Y. • Biology tutor
43152 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 eth...
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Answered by Callum M. • Chemistry tutor
7100 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 allo...
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Answered by Reece L. • Chemistry tutor
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