4. Dry hydrogen gas is passed over a
powdered solid and then through
cooled U-tube before the excess of
hydrogen is burned in air.
A colourless liquid collects in the U-tube.
What could the powdered solid be?
A calcium oxide
B copper(II) oxide
C magnesium
D zinc oxide
Answers
Answered by
2
zinc oxide is the powdered solid
Answered by
7
Answer:
Zing Oxide
Explanation:
Zinc oxide is an inorganic compound with the formula ZnO. ZnO is a white powder that is insoluble in water.
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