substance k reacts with sodium carbonate to form a gas the gas turns limewater cloudy. what's the substance K and which process takes place
Answers
- Thermal decomposition of metal components
- is the process
And k is - Potassium
Answer:
Hydrochloric acid and neutralisation
Explanation:
1) Any acid+base reaction is a neutralisation reaction
Test for hydrogen:
If hydrogen is present in a test tube, a lighted splint held near its mouth ignites with a squeaky pop.
Test for Carbon Dioxide:
If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white.
Sodium carbonate + ethanol = sodium ethoxide and hydrogen gas.
As mentioned above it ignites a lighted splint with a squeaky pop and does not make limewater cloudy/milky white, so ethanol is wrong.
Sodium carbonate + hydrochloric acid = sodium chloride, carbon dioxide and water
And as mentioned above, the solution when tested for carbon dioxide will turn cloudy when reacted with limewater.