Pupil sheet · Reversible reactions and equilibrium
Reversible reactions and equilibrium — return questions
Name ______________________ Date ____________
Use one to two weeks after the lessons. Keep the notes and the lesson closed.
1. state / describe
Give the word equation for the reversible reaction of copper(II) sulfate with its water, and state which direction needs heating.
Word equation
The direction heating drives
2. describe / state
A strip of blue cobalt chloride paper is dipped into a liquid and turns pink. (a) What does this show about the liquid? (b) Which compound has formed in the paper? (c) How could the strip be turned blue again?
(a) What it shows
(b) The compound formed
(c) How to turn it blue
3. state
Supplement. Give the symbol equation and the typical conditions (temperature, pressure, catalyst) of the Contact process.
Equation
Conditions
4. predict / explain
Supplement. You are told: A(g) + B(g) ⇌ C(g), and the forward reaction is endothermic. Predict and explain the effect on the amount of C of (a) cooling the mixture, (b) adding a catalyst.
(a) Cooling
(b) A catalyst