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Chemistry

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How would you expect calcium carbonate to react with hydrochloric acid?

The chemical equation is as follows:

CaCO_3(s)+2HCl_(aq)--->CO_2(g)+H₂O(l)+CaCl_2(aq)

The general formula for an acid reacting with a ca...

Answered by Annie H. • Chemistry tutor

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Explain why DNA replication is considered semi-conservative.

DNA requires one template strand that is conserved, in order for the nitrogenous bases to order themselves correctly in the new polynucleotide chain. This relies on the complimentary base pairing C-G and ...

Answered by Alexander G. • Chemistry tutor

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How do catalysts speed up the rate of a reaction?

A catalyst increases the rate of the reaction because:

They provide an alternative energy pathway that has a lower activation energy
This means that more particles hav...

Answered by Vanessa O. • Chemistry tutor

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Iron can be extracted from iron ore by reaction with carbon at very high temperature in a blast furnace. In this process Fe2O3 is reduced to Fe. Explain what is meant by the term reduction.

Reduction: loss of oxygen (or gain of electrons)

Answered by Mark T. • Chemistry tutor

3691 Views

Why does a higher temperature lead to a higher rate of reaction?

Heat is a form of energy - the more heat a particle has, the more energy it has, and so the faster it moves. This increases the number of collision is a set period of time, whilst also increasing the numb...

Answered by Andreas C. • Chemistry tutor

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