Types of Chemical Reactions
This reaction type combines two or more simple substances into a more complex product.
What is a synthesis reaction?
This law must be obeyed when balancing chemical equations, stating atoms are neither created nor destroyed.
What is the Law of Conservation of Mass?
These common fuels undergo combustion reactions to release energy for heating and transportation.
What are methane, propane, and ethanol?
The synthesis of water from hydrogen and oxygen is represented by this balanced equation.
What is 2H2 + O2 → 2H2O?
Fuels power engines and heat homes by undergoing these chemical processes.
What are chemical reactions?
In this reaction type, a complex compound breaks down into simpler substances
What is a decomposition reaction?
When balancing an equation, you can only change these numbers in front of compounds, not subscripts.
What are coefficients?
Combustion produces these two main gaseous products besides energy.
What are carbon dioxide (CO2) and water (H2O)?
The breakdown of hydrogen peroxide into water and oxygen is an example of this reaction.
What is a decomposition reaction?
Single and double replacement reactions are important in this aspect of fuels.
What is fuel processing and cleaning emissions?
This reaction involves one element replacing another in a compound.
What is a single replacement reaction?
Balance this combustion reaction: C3H8 + O2 → CO2 + H2O (Just the coefficients on the right side)
What is 3CO2 + 4H2O?
Understanding this helps us predict products and balance equations for fuels.
What are different types of chemical reactions?
Sodium hydroxide reacts with hydrochloric acid to form water and salt; this is an example of this reaction
What is a double replacement reaction?
This type of reaction releases more energy forming new bonds than is absorbed breaking old ones.
What is combustion?
This type involves the exchange of ions between two compounds to form new compounds.
What is a double replacement reaction?
This is the general form for a decomposition reaction.
What is AB → A + B?
The combustion of methane has this balanced chemical equation.
What is CH4 + 2O2 → CO2 + 2H2O + energy?
Magnesium reacts with hydrochloric acid, replacing hydrogen to produce hydrogen gas and magnesium chloride.
What is a single replacement reaction?
Balance the combustion reaction of propane (C3H8) where propane reacts with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O).
What is the balanced equation?
C3H8+5O2→3CO2+4H2O
The reaction of a fuel with oxygen producing energy, carbon dioxide, and water is called?
What is a combustion reaction?
This is the general form for a single replacement reaction.
What is A + BC → AC + B?
Balancing combustion equations allows calculation of this for oxygen and pollutants.
What is the oxygen needed and pollutant outputs?
This unbalanced combustion reaction for propane must be balanced as C3H8 + 5O2 → 3CO2 + 4H2O.
What is the combustion of propane?
This hydrocarbon fuel, commonly used in cars, combusts in oxygen to produce carbon dioxide and water. Its chemical formula is C8H18. Write the balanced equation for its complete combustion.
Balanced equation:
2C8H18+25O2→16CO2+18H2O