Reactivity Chemistry

Which of the following is MOST reactive?

• Magnesium

• Lead

• Tin

• Copper

• Zinc

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following reactions is likely potassium reacting with water?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

NGSS.HS-PS1-4

What will be observed when magnesium is added to iron(II) sulfate solution?

• no visible change

• green solution turns colourless

• green precipitate is formed

• brown solid is formed

• grey metal remains grey

Explain the observation when magnesium is added to copper(II) sulfate solution.

• Mg more reactive than Cu and displace Cu²⁺ from CuSO₄.

• Mg less reactive than Cu and displace Cu from CuSO₄.

• Cu is more reactive than Mg and displace Mg²⁺ from the solution.

• Cu is less reactive than Mg and so is unable to displace Mg.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following will produce hydrogen gas when added to warm dilute sulfuric acid?

• aluminium

• silver

• sodium

• iron

• zinc

Tags

NGSS.HS-PS1-1

Which one of the following equations are correct with cold water?

• Ca + 2H₂O --> Ca(OH)₂ + H₂

• Mg + H₂O --> MgO + H₂

• Cu + H₂O --> CuO + H₂

• 2Na + H₂O --> Na₂O + H₂

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is/are formed when iron + lead oxide?

• lead

• iron

• oxygen

• iron oxide

• lead oxide

Tags

NGSS.HS-PS1-7

A displacement reaction will occur when...

• a more reactive metal displaces a less reactive metal from its compound.
• A less reactive metal displaces a more reactive metal from its compound
• Displacement only occurs when two of the same metals are reacted 
• Displacement reactions will only occur in metals above iron in the reactivity series

Which of the following would result in a displacement reaction?

• iron with magnesium oxide

• zinc with iron chloride

• iron with zinc sulphate

• gold with copper oxide

• lead with silver oxide

Which one of the following metals could produce zinc metal, if heated with zinc oxide?

• Copper
• Aluminium
• Iron
• Silver