Chem Unit 9

According to the activity series, which of the following single replacement reactions can occur?

• Ca + Al₂(SO₄)₃
• Fe + NaOH
• Ni + MgSO₄
• Al + KOH

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following equations represents the balanced synthesis reaction of iron (III) and oxygen?

• Fe + 3 O₂ → Fe₂O₃
• 3 Fe + 3 O₂ → 2 Fe₂O₃
• 2 Fe + O₂ → Fe₂O₃
• 4 Fe + 3 O₂ → 2 Fe₂O₃

What are the correct formulas and coefficients for the products of the following double-replacement reaction?
RbOH + H₃PO₄ →

• Rb₃PO₄ + 3 H₂O
• Rb(PO₄)₃ + H₂O
• H₃Rb + PO₄OH
• RbPO₄ + 2 H₂O

What are the correct formulas and coefficients for the products of the following single-replacement reaction?
Mg + Al(OH)₃ →

• No Reaction
• Al + Mg(OH)₃
• 2 Al + 3 Mg(OH)₂
• 3 Al + MgOH₃

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following would create a precipitate according to the solubility table?

• Ba(NO₃)₂
• K₃PO₄
• Cu(OH)₂
• NH₄Cl

According to the solubility table, is NaCl soluble or insoluble?

• Soluble
• Insoluble 
• Neither
• Soluble and Insoluble

According to the solubility table, is AgCl soluble or insoluble?

• Soluble
• Insoluble
• Neither 
• Both

According to the solubility table, is MgO soluble or insoluble?

• Soluble
• Insoluble
• Neither
• Both

What is the state of matter symbol for an insoluble compound?

• (s)
• (aq)
• (g)
• (l)

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

• Na₂ + Fe(CO₃)₂
• Na + CO₃Fe
• Na + Fe₂CO₃
• No Reaction

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7