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WorksheetsEquilibrium Equations
Total questions: 25
Worksheet time: 13mins
We talk about chemical reactions as being a straightforward process, often times they're also ___
going faster than calculated
going backwards
going sideways
stopped completely
A commonly discussed equilibrium reaction is the combining of nitrogen and hydrogen to make ___
urea
sulfuric acid
ammonia
nitrous oxide
When the products form at the same rate that they break down, a reaction is said to be in its ___
symmetrical form
balanced equation
stable condition
equilibrium state
You can tinker with chemical equilibrium by altering which three factors?
concentration, temperature and a catalyst
the catalyst, temperature and solubility
concentration, temperature and pressure
concentration, solubility and pressure
In the Haber Process, increasing the pressure shifts the position of equilibrium to create more ___
nitrogen
hydrogen
ammonia
gas molecules
For every reaction, the unique number needed to do equilibrium calculations is called ___
the equilibrium constant
Avogadro's number
the gas constant
the Haber number
In the generalized "obviously fake" chemical equation, what do the capital letters stand for?
the molar masses
the coefficients
the reactants and the products
the equilibrium constants
What do the lowercase letters stand for, in the generalized "obviously fake" chemical equation?
the molar masses
the coefficients in a balanced reaction
the reactants and the products
the molecular formulas
When calculating the equilibrium constant, each concentration is ___
subtracted from the product
added together
squared
raised to the power of its coefficient
To calculate Keq, it's the product of the products over the product of the reactants and the coefficients ___
are factored out
become exponents
are added
are cancelled
Square brackets in a formula are used by chemists to represent ___
molar mass
molality
molarity
the mass number
The moles of solute per liter of solution is referred to as ___
molar mass
molality
molarity
the mass number
For any reaction, the equilibrium constant is only true for ___
a specific concentration of the reactants
a specific temperature
a specific concentration of the products
atmospheric pressure
Equilibrium constants are normally calculated at what temperature?
-273 °C
0 °C
25 °C
100 °C
Carbonic acid, which is basically just carbon dioxide dissolved in water, dissociates to form ___
acetic acid
calcium carbide and hydrogen ions
carbon monoxide and hydroxide ions
carbonate ions and hydrogen ions
An increase in hydrogen ions, in Earth's oceans, would require a huge decrease in carbonate ions or ___
a small decrease in carbonic acid
a small increase in carbonic acid
a huge decrease in carbonic acid
a huge increase in carbonic acid
When dealing with equilibrium calculations, what does the acronym RICE stand for?
rotary internal combustion engine
rest, ice, compression and elevation
reaction, initial, change, and equilibrium
research, innovation, creativity and enterprise
What is written on the R line of a RICE table?
the molar concentrations of reactants
the Rydberg constants
the rates of reactions
the balanced chemical equation of reaction
What is written on the I line of a RICE table?
independent variables
the initial concentrations of each substance
ideal gas constants
the balanced chemical equation of reaction
What is written on the C line of a RICE table?
how much of each substance will change during the reaction
the concentrations of each substance
ideal gas constants
the chemical formulas for each reactant and product
The E line on a RICE table is simply just ___
the amount of unknown
the sum of the initial line and the change line
the equivalent parts per million
the energy change
With 3 moles of H2 and 6 moles of F2 in a 3 liter container, what is the concentration of hydrogen gas?
1 molar
3 molar
6 molar
9 molar
When performing equilibrium calculations, what type of equation is an extremely common result?
a cubic equation
a sinusoidal equation
a quadratic equation
an exponential equation
When using the quadratic formula, how many possible answers are generated?
one
two
three
four
If the universe really is try to take advantage of us, we've certainly figured out how to ___
travel to its outer edge
take advantage right back
meekly submit
understand its every nuance
