Atoms and Molecules Worksheet-4
A. An atom of carbon (C-12)
B. 1/12th of mass of carbon atom (C-12)
C. 1/12th Of hydrogen atom.
D. One atom of all the elements.
A. 32 times B. 12 times
Read More...Atoms and Molecules Worksheet-5
A. 6.0 × 1024 B. 6.022 × 1022
C. 6.022 × 1023 D. 6.022 × 10–23
A. 6.022 × 1010 B. 6.022 × 1022
Read More...Atoms and Molecules Worksheet-6
Calcium = 40.0%; Carbon = 12.0%; Oxygen = 48.0%
If the law of constant proportions is true, what weights of these elements will be present in 1.5 g of another sample of calcium carbonate?
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