Using Word Equations

Many pollutants are formed during the combustion of carbon-containing fuels. A sample of coal contains $\mathrm{C}, \mathrm{H}$ and $\mathrm{S}$ atoms. 

• Write a word equation for the formation of sulphur dioxide.

Mrs Brown’s class were investigating how the mass of magnesium changes when it burns.

• Write a word equation for the reaction.

Zinc sulphate crystals are made when zinc oxide reacts with sulphuric acid and the solution is left so that water can evaporate off.

Write a word equation for the reaction.

Name the compounds produced when hydrochloric acid reacts with calcium oxide.

When sodium hydroxide is added to a solution of iron (lll) chloride, the following can be seen:

• A rust coloured solid is formed.
• The total mass does not change.

Explain the observations. Your answer should include a word equation.

Nuri was doing an experiment. He has noted his observation in a table.

Write a word equation for the reaction.

Nuri was doing an experiment. He has noted his observation in a table.

Write a word equation for the reaction.

Nuri was doing an experiment. He has noted his observation in a table.

Write a word equation for the reaction.

Nuri was doing an experiment. He has noted his observation in a table.

Write a word equation for the reaction.

Nuri was doing an experiment. He has noted his observation in a table.

Write a word equation for the reaction.

When sodium hydroxide is added to copper sulphate, you can see a blue solid (copper hydroxide) forming in a colourless sodium sulfate solution. Write a word equation for the reaction.

The diagram shows the atoms present in some reactants.

During the reaction, the atoms rearranged to form new compounds. Show the atoms present in the new compounds by drawing in the last two boxes.

Elements and compounds are made from atoms. Identify the element:

A word equation is used to describe a chemical reaction. Identify the correct way of writing a word equation.