Unit 4: Reactions

Define a single replacement reaction.

• A compound reacts with another compound to produce two new compounds.
• A hydrocarbon reacts with water to produce carbon dioxide and water. 
• An element reacts with a compound and produces a new compound if the single element is higher in reactivity.
• An element reacts with another element to produce a compound. 

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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

What are the products of this reaction: Fe + Na₂CO₃ ?

• Na₂ + Fe(CO₃)₂
• Na + CO₃Fe
• Na + Fe₂CO₃
• 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

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

• Cu + MgSO₄
• Cu + SO₄Mg
• Cu + Mg(SO₄)₂
• No Reaction

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NGSS.HS-PS1-2

What is the generic formula for a single replacement reaction? 

• A + BC ---> CA + B
• A + BC ---> BC + A
• A + BC ---> AB + C
• A + BC ---> AC + B

Which element is highest in reactivity?

• Gold
• Lithium
• Lead
• Iron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Will the following reaction take place? 
AuNO₃ + Li ->

• yes 
• no

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NGSS.HS-PS1-2

What would be the solubility of PbS (lead sulfide)?

• Soluble - and thus labeled as (aq)
• Insoluble - and thus labeled as (aq)
• Soluble - and thus labeled as (s)
• Insoluble - and thus labeled as (s)

What would be the solubility of potassium nitrate (KNO₃)?

• Soluble - and thus labeled as (aq)
• Insoluble - and thus labeled as (aq)
• Soluble - and thus labeled as (s)
• Insoluble - and thus labeled as (s)

Tags

NGSS.HS-PS1-1