Classify the following into element, compound and mixture: Coal, Et...

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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,
\( \mathrm{P} \) Bronze, Brick, Rolled gold, Washing soda, smoke, ice-cream, tooth paste, fog, German silver, phosphorus.
W If the number of mixture is ' \( \mathrm{a} \) ', number of compounds is ' \( \mathrm{b} \) ' and number of elements is ' \( \mathrm{C} \) ', then the value of \( [(a-b+c) \div 2] \) is
(II) \( 0.00 \)
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