A word equation is used to describe a chemical reaction. Identify the correct way of writing a word equation.
Important Questions on Chemical Reactions
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.
Farmers often put lime on fields to neutralise acidic soil. This is the label usually found on a bag of lime.
State two things that the label tell us about lime.
Nuri was doing an experiment. He has noted his observation in a table.
| Test | Methods | Observation | Conclusion |
| Add drop of sodium hydroxide to iron (lll) sulphate | A rust-coloured solid appeared. | _____ | |
| Add drop of sodium hydroxide to calcium chloride | A white solid appeared. | _____ | |
| Heat copper metal in a flame | The metal went black | _____ | |
| Add copper metal to hydrochloric acid. | No changes observed. | _____ | |
| Add magnesium metal to hydrochloric acid. | Bubbles are seen coming off of the metal. | _____ |
Complete the table. Write a conclusion for each experiment based on the observations.
Nuri was doing an experiment. He has noted his observation in a table.
| Methods | Observation |
|
Add drop of sodium hydroxide to iron (lll) sulphate |
A rust-coloured solid appeared. |
Write a word equation for the reaction.
Nuri was doing an experiment. He has noted his observation in a table.
| Methods | Observation |
|
Add drop of sodium hydroxide to calcium chloride |
A white solid appeared. |
Write a word equation for the reaction.
