Science Quiz / The Case of the Missing Subscripts

Random Science or Chemistry Quiz

Can you name the missing single-digit integer that correctly completes each chemical formula?

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Score 0/15 Timer 03:00
Chemical Name and FormulaMissing Subscript
Carbon Tetrachloride: C__Cl4
Sodium Ferrocyanide: Na4Fe(CN)__
Methane: CH__
Pentaphosphorus Trichloride: P__Cl3
Iron(III) Oxide: Fe__O3
Ammonia: NH__
Dichlorine Heptoxide: Cl2O__
Calcium Hydroxide: Ca__(OH)2
Chemical Name and FormulaMissing Subscript
Phosphoric Acid: H3PO__
Butanol: C__H9OH
Barium Chloride: BaCl__
Water: H__O
Propane: C3H__
Acetylene: C__H2
Glucose: C6H12O__

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