type the number of each element present in the following compounds Sr(NO3)2 Sr N O Al2(SO4)3...

Question

Question

type the number of each element present in the following compounds
Sr(NO3)2

Sr
N
O

Al2(SO4)3

Al
S
O

Answer 1

Answer #1

Sr(NO3)2 contains 1 Sr atom, 2 N atoms and 2*3= 6 oxygen atoms

Sr : 1, N= 2 and O= 6

for Al2(SO4)3, there are 2 Al atoms, 3 S atoms and 4*3=12 oxygen atoms

hence Al =2, S=3 and O=12

Answer 2

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