Lesson Check - Single Replacement Reactions (2025-2026)

Based on the Halogens activity series, what are the predicted products of this reaction?

Br₂ (l) + KI (aq) →

• KBr + I₂

• KBr + I

• KBr₂ + I

• No Reaction

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Based on the activity series, will this reaction occur?

Au (s) + HCl (l) →

• AuCl + H

• No Reaction

• AuCl + H_2

• Au₂Cl + H₂

Predict the product(s) of this reaction (don't worry about balancing):

Mg + HCl →

• No Reaction

• MgCl₂ + H₂

• MgCl₂ + H

• MgCl + H₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

A mixture contains cobalt, copper, and tin . This mixture is mixed with nickel nitrate. Which metals, if any, will react?

• Cobalt only

• Copper only

• Tin only

• All 3

What will be the result of the following:

LiBr + Na --->

• Li will replace Na

• Na will replace Br

• Na will replace Li

• no reaction will occur

Tags

NGSS.HS-PS1-2

Predict the results: K + HOH --->

• K₂OH

• KOH + H₂

• K(OH)₂

• No Reaction

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Predict the results: Cu + HCl

• CuCl₂ + H₂

• CuCl + H₂

• Cu₂Cl + H₂

• No reaction

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which compound is higher in reactivity, Ag or Ca?

• Ag

• Ca

• Neither

• They're equal

What are the products of this single replacement reaction: Mg + CuSO₄

• Cu + MgSO₄

• Cu + SO₄Mg

• Cu + Mg(SO₄)₂

• No Reaction

Tags

NGSS.HS-PS1-1

What do we look at to determine if an element is strong enough to replace another element in a single replacement reaction?

• Solubility Rules 
• Ionic Charges
• It must be insoluble!
• Activity Series