Use the diagram to help you to answer this question. Describe, as fully as you can, what happens when calcium reacts with chlorine to make calcium chloride.

1.0 This question is about carbonates. 1.1 Sodium carbonate, Na2CO3, is used as a water softener. Give the number of atoms of each type in sodium carbonate.

Write the equation for when magnesium reacts with oxygen. What happens to the mass of the product from the question above? % mass = Ar × number of atoms × 100.

Questions to answer: 1. What is the concentration (in g/dm3) of a solution that has 40 g of solute in 2 dm3 of solution? Page 13. Revision Pack Topic 3 ...

AQA GCSE Chemistry. Quantitative Chemistry Homework Answers. Writing Chemical Formulae. 1. CO2. 2. H2SO4. 3. CH4. 4. NH3. 5. LiOH. 6. HNO3. 7. K2SO4. 8. CuCl2.

1.0 This question is about carbonates. 1.1 Sodium carbonate, Na2CO3, is used as a water softener. Give the number of atoms of each type in sodium carbonate.

Calculate the maximum mass of aspirin that could be made from 100 g of salicylic acid. Show clearly how you work out your answer. The relative formula mass (Mr) ...

What was the volume of acid added in the rough titration? (Total for question = 1 mark) Edexcel Chemistry GCSE - Quantitative analysis PhysicsAndMathsTutor.com ...

Unit 3 - Quantitative Chemistry Answers – FT. Recap questions: 1. Conservation of mass states that matter is not created or destroyed in a chemical.

Quantitative chemistry gcse questions and answers. 1. Convert 1.5 dm3 of a 0.25 mol dm-3 solution to moles: Concentration = Number of moles / Volume Number of ...