The metal that liberates hydrogen from cold water in bubb...
The metal that liberates hydrogen from cold water in bubbles only is?
Na
K
Ca
Al
Correct answer is C
After a second or so, the calcium metal begins to bubble vigorously as it reacts with the water, producing hydrogen gas, and a cloudy white precipitate of calcium hydroxide.
Which of the following statements about an equilibrium system is correct? ...
The chemical reaction which takes place at the anode (positive electrode) in electrolysis is? ...
The shapes of CO2, H2O and CH 4 respectively are...
Which of the following is a redox reaction? ...