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Level 4

Score: 0

H

O

Cl

C

Ca

S

Fe

Mg

K

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Drop the elements here

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Hint

List of Compounds:

Calcium Carbonate - CaCO*
Magnesium Oxide - M*O
Potassium Hydroxide - KO*
Iron Oxide - Fe*O3
Carbon Dioxide - CO*
Hydrochloric Acid - H*l
Sulfur Dioxide - SO*
Calcium Chloride - CaCl*

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