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Explain why atomic radius decreases across a period

As you go along a period, there is an increasing number of protons in the nucleus of each atom meaning that the nucleus has an increasing positive charge.This means that the electrons are puller closer to...

Answered by Tutor406540 D. • Chemistry tutor

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In the reaction CO(g) + 2H2(g) <--> CH3OH(g), explain why an increase in pressure increases the yield of methanol

Increasing the pressure shifts equilibrium towards the side with fewer moles of gas, so in this reaction the equilibrium will move to the right. Hence, a shift towards the right hand side...

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Explain why phenol is nitrated more readily than benzene.

Phenol has a lone pair of electrons on the O group which can be delocalised into the benzene Pi system2) This delocalisation increases the electron density in the pi system compared to benzene3) Thi...

Answered by Daniel B. • Chemistry tutor

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Magnesium oxide contains magnesium ions (Mg2+) and oxide ions (O2–). Describe what happens when magnesium atoms react with oxygen atoms to produce magnesium oxide.

magnesium ions loses two electrons becoming Mgoxygen gains two electron becoming OThis now means both the atoms have a full shell

Answered by Rabia D. • Chemistry tutor

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In the equation 2Na + 2H2O ---> 2NaOH + H2, is Na oxidised or reduced and why?

Write out the equation and explain the OIL RIG acronym.2Na + 2H₂O ---> 2NaOH + H₂Write the changes in oxidation state of Na. Na goes from an oxidation state of 0 to an oxidation ...

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