# "Describe" questions — Edexcel GCSE Chemistry (1CH0)

> 26 questions · chemistry

## How to answer

Say WHAT happens, in order. No reasoning. Structure: 1. First X. 2. Then Y. 3. Then Z. Assessment Objective: AO1. Every "describe" answer on this spec is marked against exactly this pattern.

## Sample questions

1. [A student writes the following word equation for the reaction between magnesium and oxygen: magnesium + oxygen → magnesi…](https://www.gradenine.co.uk/q/a-student-writes-the-following-word-113e3aaa)
2. [A water company suspects that a sample of borehole water contains dissolved metal ions and negative ions (anions). A tec…](https://www.gradenine.co.uk/q/a-water-company-suspects-that-a-1be732c9)
3. [Describe the effect of increasing temperature on the kinetic energy of particles in a solid, liquid and gas, and explain…](https://www.gradenine.co.uk/q/describe-the-effect-of-increasing-temperature-225bc13f)
4. [A geologist finds a mineral sample and dissolves part of it in dilute hydrochloric acid to produce a solution. The geolo…](https://www.gradenine.co.uk/q/a-geologist-finds-a-mineral-sample-31dd747b)
5. [Describe the structure of an atom in terms of the particles it contains, including where those particles are found and t…](https://www.gradenine.co.uk/q/describe-the-structure-of-an-atom-35775580)
6. [Methane, pentane and decane are all alkanes found in crude oil. Describe how the properties of these three alkanes chang…](https://www.gradenine.co.uk/q/methane-pentane-and-decane-are-all-3a491fd0)
7. [Sulfur dioxide and carbon monoxide are both pollutants produced when fossil fuels are burned. Describe how each gas is p…](https://www.gradenine.co.uk/q/sulfur-dioxide-and-carbon-monoxide-are-416f9fbb)
8. [Describe the differences between the arrangement and movement of particles in a solid and in a gas.](https://www.gradenine.co.uk/q/describe-the-differences-between-the-arrangement-4d7600bf)

## Related

- [Edexcel GCSE Chemistry (1CH0) revision notes](https://www.gradenine.co.uk/learn/edexcel-gcse-chemistry-1ch0)
- [Edexcel GCSE Chemistry (1CH0) past papers](https://www.gradenine.co.uk/past-papers/edexcel-gcse-chemistry-1ch0)
- [Practise with AI marking (free)](https://www.gradenine.co.uk/start)