Double Displacement Reactions

What will the balanced equation be if you react:

CaCl₂ + NaOH

• CaCl₂ + 2 NaOH --> Ca(OH)₂ + 2 NaCl

• CaCl₂ + 2 NaOH --> CaOH + 2 NaCl

• CaCl₂ + 2 NaOH --> CaNa₂ + 2 ClOH

• no reaction

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

What is the precipitate formed between CaCl₂ and NaOH?

• CaCl₂

• NaOH

• Ca(OH)₂

• NaCl

• no precipitate is formed

Will the reaction between NaOH and KCl occur?

• Yes

• No

Mark the indicators of a double displacement reaction.

• Water is formed

• gas is formed

• a precipitate is formed

• a phase change occurs

• none of these are correct

Will the reaction between Cu(NO₃)₂ and K₂SO₄ happen?

• yes

• no

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which equation is a double displacement reaction?

• Cl₂ + 2KI --> 2KCl

• Fe + O₂ --> Fe₂O₃

• CaCO₃ --> CO₂ + CaO

• CaCO₃ + 2HCl --> CaCl₂ + H₂CO₃

What are the products for a reaction between KCl and AgNO₃

• KAg + ClNO₃

• KCl + AgNO₃

• KNO₃ + AgCl

• no reaction occurs

Tags

NGSS.HS-PS1-1

What is the correct products for a reaction between NaNO₃ and CuCl₂

• NaCu + ClNO₃

• NaCl + Cu(NO₃)₂

• NaNO₃ + CuCl₂

• No reaction occurs

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Identify the single replacement reaction

• Cl₂ + 2KI --> 2 KCl + I₂

• Fe + O₂ --> Fe₂O₃

• CaCO₃ --> CaO + CO₂

• 2P + 5O₂ --> P₂O₅

Identify the decomposition reaction

• Cl₂ + 2KI --> 2 KCl + I₂

• Fe + O₂ --> Fe₂O₃

• CaCO₃ --> CaO + CO₂

• 2P + 5O₂ --> P₂O₅