Maths for Chemists

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Maths for Chemists

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What elements are present in the reaction below?

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A) Hydrogen, fluorine, oxygen, carbon, chlorine.

B) Hydrogen, fluorine, cobalt, chlorine.

C) Hafnium, oxygen, carbon, chlorine.

D) Hafnium, chlorine, cobalt.

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How many carbon and chlorine atoms are present in

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A) 2 carbon and 4 chlorine

B) 2 carbon and 8 chlorine

C) 1 carbon and 8 chlorine

D) 2 carbon and 6 chlorine

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A sample of sulfur is comprised of over 90% sulfur-32 atoms with the remaining atoms being sulfur-34. Will the relative atomic mass of this sample be:

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Between 32 and 32.49

Between 32.5 and 32.99

Between 33 and 33.49

Between 33.5 and 34

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