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Chemistry
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How does temperature affect the rate of reaction?

For a reaction to occur particles reacting must have a neccessary activation energy (kinetic energy). As temperature gets higher, so does the kinetic energy of particles, which can be ilustrated with a Ma...

Answered by Chemistry tutor
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Describe how you would differentiate a sample of butanal and butan-2-one.

You would add tollen's reagent to both samples. The butanal would form a silver mirror, whereas, butan-2-one would remain unchanged. This is due to the fact that an aldehyde can be oxidised to a carboxyli...

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The Haber process is used to manufacture ammonia. Explain the optimum conditions for this reaction and why these conditions may not be used in industry

N2(g)+3H2(g) ⇋ 2NH3(g) ΔH=-92kJmol-1 (equation for question above)
According to Le Chatelier's principle, a system in dynamic equilibrium will shift th...

Answered by Luke A. Chemistry tutor
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State why it is initially unexpected for alkenes to undergo electrophilic addition with bromine. Explain why this reaction does indeed occur.

Bromine exists as Br2, and since both bromine atoms are identical - their electronegativities identical, - the electron density is distributed evenly across the molecule (it is non-polar, the a...

Answered by Kai C. Chemistry tutor
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Explain the trend in first ionization energy down group 2. (3 marks)

The trend in first ionisation energy down a group: DECREASES due to:-       Increase in atomic radius as there are more shells-       Increased shielding...

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