How many atoms will one mole of Carbon (C-12) contain?
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Matter is classified as a
_____ is the most ductile metal.
Which of the following metals is a liquid at room temperature?
In the following gases, which is not a colorless or odourless gas?
Except Helium, all noble gases have how many electrons in the outermost shell?
Which of the following is a mixture?
The gas evolved when sodium carbonate reacts with hydrochloric acid is