Two glass jars a ana b are filled with carbondioxide and oxygen respectively. in each jar a lightened candle is placed simultaneously. in which jar the candle remain lightened?

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?

What is happening when the water inside a kettle heats up and begins to boil

Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol