Chemistry, 04.02.2020 00:04, stephen4438
When you expose a wet iron nail (fe) to the oxygen in air (o2), you will notice that rust, or iron oxide (fe3o4), forms on its surface. which of the following statements is true?
a. the elements iron in the nail and oxygen from the air combine to form the compound rust.
b. the compounds iron in the nail and oxygen from the air combine to form the element rust.
c. the elements rust in the nail and oxygen from the water combine to form the compound iron.
d. the elements iron in the nail and oxygen combine to form the mixture rust.
Answers: 1
Chemistry, 23.06.2019 02:50, igraha17
Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ
Answers: 2
Chemistry, 23.06.2019 05:00, rosezgomez97
Asolution is made by dissolving 2.3 moles of sodium chloride (nacl) in 0.155 kilograms of water. if the molal boiling point constant for water (kb) is 0.51 °c/m, what would be the boiling point of this solution? show all the steps taken to solve this problem.
Answers: 1
When you expose a wet iron nail (fe) to the oxygen in air (o2), you will notice that rust, or iron o...
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