What does the term dynamic equilibrium mean?
The pressure of the equilibrium mixture is reduced. The temperature of the closed system is held constant. Predict and explain how the composition of the equilibrium mixture will change.
The temperature of the equilibrium mixture is increased. The pressure inside the closed system is kept constant. The equilibrium position shifts to the right-hand side. What conclusion can be drawn about the enthalpy change of the reaction?
Calcium carbonate reacts with dilute nitric acid to produce three substances, X, Y and Z. X is a salt. Y is a colourless gas. Z is a colourless liquid. Name Y and describe a test for this gas.
State the identity of Z and describe a chemical test for this liquid.
Write the equation for calcium carbonate reacting with nitric acid.