MEDIUM
MYP:4-5
IMPORTANT
Earn 100

Write balanced chemical equations for each combustion reaction(Methanol, ethanol, propan-2-ol and butanol). Base the products for each reaction on the conclusions you reached about the nature of the combustion reaction.

Important Questions on Interaction

HARD
MYP:4-5
IMPORTANT
The reactivity series of metals can be used to predict the products of redox reactions. Why is gold and silver used to make jewellery?
MEDIUM
MYP:4-5
IMPORTANT
Why does magnesium replace hydrogen when it reacts with hydrochloric acid?
EASY
MYP:4-5
IMPORTANT
Would pure silver jewellery react with an acid?
EASY
MYP:4-5
IMPORTANT
Predict how the reaction between lead and hydrochloric acid would compare to the reaction between magnesium and hydrochloric acid. Describe how your observations of the two reactions would differ.
MEDIUM
MYP:4-5
IMPORTANT
Look back at the question earlier in the chapter about sacrificial anodes. What do you notice about their position in the reactivity series?
HARD
MYP:4-5
IMPORTANT
Discuss the differences in the level of reactivity of each metal(Magnesium, aluminium, zinc, iron, nickel and copper metal strips).
MEDIUM
MYP:4-5
IMPORTANT
Order the reactions(Magnesium, aluminium, zinc, iron, nickel and copper metal strips with hydrochloric acid) from vigorous to unreactive based on your qualitative observations.
EASY
MYP:4-5
IMPORTANT
Describe the appearance of a fresh piece of zinc metal.