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4.00 g metal carbonate, MCO3 reacts with acid to liberate a gas that occupies 0.5878 dm3 at 25˚C and 2.0 x 105 Pa. Identify the group 2 metal, M. Info: R = 8.314 J K-1 mol-1

First it is important to recognise that this is an ideal gas equation question – the exam boards love these so try to get used to spotting if you have the necessary quantities. This is a multi-step problem, ...
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Answered by Isabel D. • Chemistry tutor
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What is a Group 1 Element?

Group one elements are all metals. They are known as the Alkaline Metals. All of these element atoms have one electron on their outer shell. This means that, when they react, they lose this one electron to g...
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Answered by Lara H. • Chemistry tutor
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Liquid ammonia (NH3) and water (H2O) both show hydrogen bonding, describe what a hydrogen bond is and what it is conferred by

A hydrogen bond forms between the positive dipole of one molecule and the negative dipole of another molecule. They can be represented on a diagram with a dashed line perpendicular (at 90˚) to the bond angle...
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Answered by Ben H. • Chemistry tutor
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Nitric acid reacts with magnesium and fizzing occurs. Write a word equation and a balanced chemical equation for this reaction.

Acids react with metals to give a salt and hydrogen gas.Nitric acid + magnesium --> magnesium nitrate + hydrogen2HNO 3 + Mg --> Mg(NO 3 ) 2 +H 2
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Answered by Emma C. • Chemistry tutor
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What is the difference between an atom and an ion? Explain the difference between an Na (sodium) atom and Na+ ion.

An atom is a neutral particle, an ion is a charged particle.Taking a sodium ( 23 Na) and sodium ion (Na + ) as an example:Firstly, we need to break down both into their subatomic particles (protons, neutrons...
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