Which metal sinks in cold water and reacts with it to form hydrogen gas
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This two popped in my mind:
Sodium- 11
When sodium metal reacts with water, the resulting heat melts the metal almost immediately into a grey-silver ball. The hydrogen gas evolved during this reaction propels the ball rapidly across the surface of the water, leaving a white trail of sodium hydroxide that eventually dissolves into a clear solution. The hydrogen will often self-ignite and burn with an orange flame. Larger pieces of sodium metal may explode in contact with water.
Calcium- 17
When mixed with water, calcium metal generates hydrogen gas and forms a cloudy white solution of calcium hydroxide.
Sodium- 11
When sodium metal reacts with water, the resulting heat melts the metal almost immediately into a grey-silver ball. The hydrogen gas evolved during this reaction propels the ball rapidly across the surface of the water, leaving a white trail of sodium hydroxide that eventually dissolves into a clear solution. The hydrogen will often self-ignite and burn with an orange flame. Larger pieces of sodium metal may explode in contact with water.
Calcium- 17
When mixed with water, calcium metal generates hydrogen gas and forms a cloudy white solution of calcium hydroxide.
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I don't know the answer
please mark me braniliest
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