- How are 3 chemical formulas for a medicine added togethr.?

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In an experiment Jim flips a fair coin and then rolls a fair die. What is the probability he gets a head and a three? A card is drawn at random from an ordinary bridge deck of 52 cards. What is P (red card or a seven) ? If the pH of the solution is 3.23, what is the [H3O+]? Find the total heat in kj that's released when 200 g of water is changed from steam at 150 ºC to ice at –40 ºC? Did FBI find Smolett dna on envelope?