100
- What property of magnesium allows it to displace hydrogen?
100
- What salt is formed when zinc reacts with hydrochloric acid?
100
- What is the chemical formula for this reaction?
200
- Which acid is commonly used in the reaction with magnesium?
200
- What metal in railway tracks can be displaced by a more reactive metal?
200
- Which metal is more reactive, zinc or aluminum?
300
- What test is used to confirm the presence of hydrogen gas?
300
- Which gas can cause rusting in railway tracks?
300
- What happens to the strength of iron when it rusts?
400
- Which metal is the least reactive in the series?
400
- What type of reaction occurs when iron is replaced by a more reactive metal?
400
- What pH range does soap usually have?
500
- What is the most reactive metal in the reactivity series?
500
- What metal is displaced when copper reacts with silver nitrate?
500
- What part of soap molecules repels water?