The organic compound which must have all the following elements c h o and n in one word
​

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

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?

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.