Classify the following into element, compound and mixture: Coal, Ethane, Glucose, Colloidal gold...

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Classify the following into element, compound and mixture:
Coal, Ethane, Glucose, Colloidal gold, Dry ice, Graphite, Brass, Hydrogen peroxide, Blood, Milk,
\( P \) Bronze, Brick, Rolled gold, Washing soda, smoke, ice-cream, tooth paste, fog, German silver, phosphorus.
W. If the number of mixture is \( a \) , number of compounds is \( b \) and number of elements is \( \mathrm{C} \) , then the value of \( [(a-b+c) \div 2] \) is
(II) \( 0.00 \)
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