...EXPERIMENT 100. — Mix together about equal small quantities of arsenic oxide and finely-powdered charcoal. Heat the mixture in a small dry tube of...form of a mirror, like that obtained in Experiment 100. Antimony, Sb (At. Wt. 120), occurs most frequently in combination with sulphur as the sulphide...

...quantities can be detected by the chemist with absolute certainty. It is easily reduced by means of carbon. in a small dry tube of hard glass, closed at one end....form of a mirror, like that obtained in Experiment 100. Antimony, Sb (At. Wt. 120), occurs most frequently in combination with sulphur as the sulphide...

...small quantities of arsenic trioxide and finely powdered charcoal. Heat the mixture in a small dry tube closed at one end. The arsenic which is set free will...on the walls of the tube in the form of a mirror. Write the equation representing the reaction. What compounds of arsenic occur in nature ? What is the...

...powdered charcoal. Heat the mixture in a small dry tube of hard glass, closed at one end. The arsenic that is set free will be deposited on the walls of the...form of a mirror, like that obtained in Experiment 100. Antimony, Sb (At. Wt. 120), occurs most frequently in combination with sulphur as the sulphide...

...(that is, with a slight puff), the decomposition seemed to be complete, and the metallic barium was deposited on the walls of the tube in the form of a fine black powder, which, when exposed to the air or thrown on water, quickly took fire. Decomposition...