Question
Oxygen gas in the laboratory can be prepared by heating potassium nitrate.
a. Write the equation of the reaction to show the decomposition of potassium nitrate
b. State One physical properties of oxygen gas
c) State One use of oxygen gas
a. Write the equation of the reaction to show the decomposition of potassium nitrate
b. State One physical properties of oxygen gas
c) State One use of oxygen gas
Answer
a) 2KNO3 → 2KNO2(s) + O2(g)
b) The common physical properties of oxygen are:
1. It is a colourless gas
2. It is odourless
3. It is slightly soluble in water.
c) Oxygen is used in hospitals with patients with breathing difficulties.
b) The common physical properties of oxygen are:
1. It is a colourless gas
2. It is odourless
3. It is slightly soluble in water.
c) Oxygen is used in hospitals with patients with breathing difficulties.
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