Chemistry
Name the following compounds and state how many atoms of each kind are present in one molecule of these compounds.
(a) H2SO4
(b) HClO4
(c) K2Cr2O7
(d) KMnO4
(e) K4[Fe(CN)6]
(f) Na2CrO4
(g) Mn3(BO4)2
(h) HNO2
Chemical Compound
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Answer
(a) Atoms in H2SO4 are
H ⟶ 2
S ⟶ 1
O ⟶ 4
(b) Atoms in HClO4
H ⟶ 1
Cl ⟶ 1
O ⟶ 4
(c) Atoms in K2Cr2O7
K ⟶ 2
Cr ⟶ 2
O ⟶ 7
(d) Atoms in KMnO4
K ⟶ 1
Mn ⟶ 1
O ⟶ 4
(e) Atoms in K4[Fe(CN)6]
K ⟶ 4
Fe ⟶ 1
C ⟶ 6
N ⟶ 6
(f) Atoms in Na2CrO4
Na ⟶ 2
Cr ⟶ 1
O ⟶ 4
(g) Atoms in Mn3(BO4)2
Mn ⟶ 3
B ⟶ 2
O ⟶ 8
(h) Atoms in HNO2
H ⟶ 1
N ⟶ 1
O ⟶ 2
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