Chemistry, 28.07.2019 07:30 elizavlsc4
How many atoms are in each of the following? a) 1.0g of hydrogen atoms, each of mass 1.0u b) 12.0g of carbon atoms, each of mass 12.0u c) 23.0g of sodium atoms, each of mass 23.0u
Answers: 1
Chemistry, 21.06.2019 15:30
Which substance absorbs 58.16 kj of energy when 3.11 mol vaporizes? a)ch4 b)h2s c)co2 d)nacl
Answers: 2
Chemistry, 22.06.2019 12:00
In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =
Answers: 1
Chemistry, 22.06.2019 14:30
Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?
Answers: 1
How many atoms are in each of the following? a) 1.0g of hydrogen atoms, each of mass 1.0u b) 12.0g...
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