1. How many atoms are in 55.78g of pure iron? How many moles of iron is it? bonus question: calculate the number of moles that are in 30.0g of carbon.

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Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

In pqr m< p=60 m< q= 30 and m

Answer asap : ( a. how does mucus prevent the entry of pathogens? b. describe two ways white blood cells protect us from pathogens.