Balancing Chemical Equations
The balanced equation of H2+02 -> H20
What is 2H2+02 -> 2H20?
This is a _______ reaction: AB → A + B?
What is Decomposition?
This reactant runs out first and limits the amount of product formed.
What is a limiting reactant?
This formula is used to calculate percent yield.
What is (Actual Yield ÷ Theoretical Yield) × 100%?
This law states that the pressure and volume of a gas are inversely related,
What is Boyle's law?
The unbalanced element in H₂ + O₂ → H₂O
What is oxygen?
Combination (synthesis), decomposition, single displacement (replacement), double displacement (replacement), and combustion are the 5 types of _______
What are chemical reactions?
When the limiting reactant is used up, this type of reactant remains left over.
What is the excess reactant?
Percent yields above 100% are usually caused by ________ in the collected product.
What are impurities?
This law states that volume and temperature (in Kelvin) of a gas are directly proportional at constant pressure.
What is Charles' Law?
The balanced equation of Fe+02 -> Fe2O3
What is 4Fe+3O2 -> 2Fe2O3
In one of these reactions, a single element replaces another in a compound (A + BC → AC + B), while in the other, two compounds exchange ions (AB + CD → AD + CB)
What is the difference between single replacement and double replacement reactions?
In the balanced equation 2H₂ + O₂ → 2H₂O, this mole ratio of hydrogen to oxygen is required.
What is 2:1?
One represents the maximum possible product from stoichiometric calculations, while the other represents the amount actually obtained experimentally.
What is the difference between theoretical yield and actual yield?
Gas law calculations use this temperature scale because it begins at absolute zero.
When balancing chemical equations, these numbers may be changed, but subscripts may not
What are coefficients?
This type of reaction always involves oxygen gas (O₂).
What is combustion?
In the reaction 2H₂ + O₂ → 2H₂O, 6 mol H₂ reacts with 2 mol O₂. The limiting reactant is ________.
What is Oxygen (O₂)?
A reaction has a theoretical yield of 50g and an actual yield of 38g. The percent yield is _________.
What is 76%?
Pressure, volume, moles, and temperature are related by this equation.
What is PV = nRT?
The balanced chemical equation for C₃H₈ + O₂ → CO₂ + H₂O
What is C₃H₈ + 5O₂ → 3CO₂ + 4H₂O?
A silvery metal placed in blue copper sulfate solution causes a reddish solid to form and the blue color to fade. This is an example of a ____________ reaction.
What is a single replacement reaction?
Identifying the limiting reactant is important in industry because it helps maximize _________ while minimizing waste.
What is product yield?
Side reactions, incomplete reactions, and product loss during transfer are common causes of _________.
What is a low percent yield?
According to kinetic molecular theory, increasing temperature in a sealed container increases _______ because gas particles collide more often and with greater force