Question 36
Your teacher will give you samples of zinc, copper and iron metal, and some dilute hydrochloric acid. Work in groups. Plan an investigation to find out whether the same gaseous product forms when the different metals react with the acid. You need to plan how to test the three metals fairly, and describe each step you will take. Start by deciding what you expect will happen – your hypothesis.
Caution: Wear safety goggles when handling an acid. Read the hazard symbols on the bottle. Make sure you know how to handle an acid properly. Ask your teacher to check your plan. Make any necessary changes, then put on your safety goggles and disposable gloves, and carry out your investigation.
Is your conclusion limited in any way? If it is, say why.
Caution: Wear safety goggles when handling an acid. Read the hazard symbols on the bottle. Make sure you know how to handle an acid properly. Ask your teacher to check your plan. Make any necessary changes, then put on your safety goggles and disposable gloves, and carry out your investigation.
Is your conclusion limited in any way? If it is, say why.
