Balanced Chemical Equations

C₄H₁₂ + O₂ → CO₂ + H₂O

• Synthesis
• Combustion
• Single Replacement
• Double Replacement

 $CuO+H_2O\ \rightarrow\ Cu\left(OH\right)_2$  

Is the  equation balanced or unbalanced?

• balanced

• unbalanced

Tags

NGSS.HS-PS1-7

Magnesium (Mg) can be burned in the air (O₂) to produce solid magnesium oxide (MgO).

Check the correct chemical equation and check if it is balanced

• 2Mg + O₂ → 2MgO

• Mg + O → MgO

• 2Mg + CO₂ → 2MgO + C

• 2Mg + O₂ → Mg₂O₂

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

Pb(NO₃)₂ --> PbO + NO₂ + O₂

• Synthesis

• Decomposition

• Single Displacement

• Combustion

Sodium (Na) reacts with chlorine (Cl₂) to produce sodium chloride (NaCl)

Check the correct chemical equation and check if it is balanced

• NaCl → Cl + Na

• Na + CO₂ → NaCO₂

• 2Na + Cl₂ → 2NaCl

• Na + Cl → NaCl

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

Write a complete balanced reaction for the following.

Calcium metal (Ca) reacts with oxygen gas (O₂) to form solid calcium oxide (CaO)

• 2 Ca + O₂ --> 2 CaO

• 2 Ca + 2 O --> 2 CaO

• Ca + O₂ --> 2 CaO

• Ca + O₂ --> CaO₂

Tags

NGSS.HS-PS1-7

What could be the coefficients in this chemical equation?

__Mg + __Cl₂ --> __MgCl₂

• 1,2,1

• 1,1,1

• 2,1,1

• 1,1,2

Tags

NGSS.HS-PS1-7

In this image, what are the information in red is called the_______.

• Product
• Reactant
• Chemical Subscript
• Coefficient

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The law of conservation of mass states that....

• Matter can be made
• Matter can be destroyed
• Matter can neither be made or destroyed
• Matter can evaporate

Tags

NGSS.HS-PS1-7

Is this balanced?...

Al + O₂ --> 2Al₂O₃

• Yes!

• No!

Tags

NGSS.HS-PS1-7