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