Chemical Reactions Review

Is this equation balanced?

• yes
• no
• Not enough information

Tags

NGSS.HS-PS1-7

Is the equation balanced?: 2H₂O + O₂ --> 4MgO + 3Fe

• Yes
• No

Tags

NGSS.HS-PS1-7

What is the generic equation for a double replacement reaction? 

• AB + CD ---> AD + CB
• AB + CD ---> DA + CB
• AB + CD ---> A + BC
• AB + CD ---> D + CBA

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

• (s)

• (aq)

• (g)

• (l)

What is a precipitate?

• A solid formed from a single replacement reaction
• An aqueous compound formed from single replacement reaction 
• An aqueous compound formed from double replacement reaction
• A solid formed from a double replacement reaction

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 of the following is arranged according increasing reactivity?

• Mg > Li > Na > K
• Mg > Na > Li > K
• Na > Li > Mg > K
• K > Mg > Na > Li

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

C₁₀H₂₂ + 11Cl₂ → 10C + 23HCl

• Balanced
• Not Balanced

Tags

NGSS.HS-PS1-7

water --> hydrogen + oxygen

Is this a decomposition reaction?

• Yes
• No

Tags

NGSS.MS-PS1-2