An element, Q, contains 69% of\(^{63}\)Q and 31% of \(^{65}\)Q. What is the relative atomic mass of Q?

a

63.0

b

63.6

c

65.0

d

69.0

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Uzamacomfort
4 years ago

(69 ×63) + (31× 65) =6362÷100=63.62 ans=B

macninoevans
3 years ago

Thanks bro

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