Question
5.When sodium reacts with water the observations are: __ into a ball, moves around quickly on surface, hydrogen gas given off
Answer
4.3
(274 Votes)
Quentin
Veteran · Tutor for 9 years
Answer
Thus when Sodium reacts with water it forms itself into a ball and moves around quickly due to its reactivity. It displaces the hydrogen in water as it reacts and forms Sodium Hydroxide, releasing Hydrogen gas in the process.
Explanation
## Step 1:In this reaction, sodium reacts with water. The sodium is a highly reactive metal, which reacts vigorously with water. ## Step 2:The sodium first molds itself into a ball due to its malleability. Because it is highly reactive, sodium moves around quickly on the water's surface, so we observe that the sodium ball violently moves around in the water.## Step 3:During this chemical reaction, hydrogen gas is released as sodium accepts proton from water behaving as an acid. Hence, hydrogen gas given off can be observed as fizz or bubbles coming out of the system. This is a result of the formation of sodium hydroxide and the displacement of hydrogen.### **Formula: \(2Na(s) + 2H_2O(l) \to 2NaOH(aq) + H_2(g)\)**