In the laboratory preparation of oxygen, dried oxygen is ...
In the laboratory preparation of oxygen, dried oxygen is usually collected over
hydrochloric acid
mercury
calcium chloride
tetraoxosulphate (VI) acid
Correct answer is B
No explanation has been provided for this answer.
Phosphorus is stored under water to prevent it from ...
How many electrons are in the L shell of 3115P?...
The situation obtained when a perfect gas expands into a vacuum is ...
The name of the compound above is...
Which of the following substances with the corresponding pH value is an alkali? Substance pH ...
What is the chemical symbol for Thulium? ...
Which element is placed at the top of the electrochemical series? ...
Which of the following movements can be described as random motion? ...