What is NOT product of complete combustion?

• carbon dioxide

• fuel

• carbon monoxide

• water

Another term for burning is

• Fire triangle
• Magnesium oxide
• Combustion
• Bustion

Hydrocarbon fuel + oxygen ----> ___+____

(Select 2)

• CO₂

• O₂

• H₂O

• C_xH_y

Write a Balanced Equation for this reaction:
C₂H₄ + 2 O₂ -->

• C₂O₂ + H₄
• CO₂ + HOH
• CO + H
• 2 CO₂ + 2H₂O

Tags

NGSS.HS-PS1-7

The correct balanced chemical equation for the reaction taking place is _____.

• C2H6 + 7O2 → 4CO2 + 6H2O

• 2C2H6 + 7O2 →4CO2 + 6H2O

• 2C2H6 +14O2 →4CO2 + 6H2O

• C2H6 + 7O2 → 2 CO2 + 3H2O

Tags

NGSS.HS-PS1-7

What kind of energy conversion does a combustion reaction involve?

• Kinetic to Potential Energy
• Chemical Potential Energy to Kinetic or Thermal Energy
• Potential Energy to Nuclear Energy
• Mass to Energy

Tags

NGSS.HS-PS1-4

Which of the following chemical reactions involve combustion?

• A forest fire
• Human digestion
• A car using gasoline
• All of the above

Tags

NGSS.HS-PS1-4

The initial energy required to start a combustion reaction is called

• Potential Energy
• Kinetic Energy
• Chemical Potential Energy
• Activation Energy

Which one of the following is not a fossil fuel?

• Wood
• Coal
• Petroleum
• Natural Gas

100g of water (c=4.818 J/gCis heated by the combustion of 10g of charcoal. The temperature of the water increases by 10 degrees. What is the approximate energy density of charcoal for this  reaction? 

• 4.18 J per gram

• 41.8 J per gram

• 418 J per gram

• 0.418 J per gram

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1