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Given the balanced equation: MgCO3 + 2HCl --> MgCl2 + H2O + CO2, if 5 grams of MgCO3 is used, what volume of CO2 is produced? (molar mass of MgCO3 is 84.3 g/mol)

This question can be split up into two parts, and uses two key equations: It's always a good idea to look at what information we have been given already, and work out what we can do with it! In this question...
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Answered by Angus B. • Chemistry tutor
14301 Views

Describe strategies used by one country to manage population growth .(6 marks)

Rapid population growth is the exponential growth of a countries population leading to an aray of problems.To counteract such issues, countries employ strageties to prevent such from occuring in the future. ...
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Answered by Maya G. • Geography tutor
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How should I structure my essays?

Intro- Place text into context & outline argument Para 1- point 1 Point Evidence (relevant quote or example from text) Explain Para 2- point 2 (PEE) Para 3- point 3 (PEE) Conclusion- summarise your argument
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Answered by Naomi G. • English tutor
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How do I calculate molar concentrations and determine the mole value based on the mass of a compound?

Molar concentrations are calculated with the basic formula: Concentration (mol/ml) = Number of moles (mol) / Volume (ml). Remember to keep all units consistent and convert when appropriate. The number of mol...
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Answered by Khashayar K. • Science tutor
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Please show, using a diagram with explanation, the effect on the UK market for t-shirts of a flood in Bangladesh, a leading cotton growing nation.

Student should realise that the flood will reduce global supply of cotton, causing the supply curve on the diagram to shift left. The market equilibrium will therefore move along the demand curve until the p...
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