Counting atoms – Ninja

Welcome to Counting atoms practice - Ninja

How many H atom(s) is(are) in 3 FeC2O4⋅2H2O?

How many O atom(s) is(are) in 5 CuCO3.Cu(OH)2?

How many O atom(s) is(are) in (NH4)3PO4.12MoO3?

How many Fe atom(s) is(are) in  K3[Fe(C2O4)3]⋅3H2O?

How many O atom(s) is(are) in  K3[Fe(C2O4)3]⋅3H2O?


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