Answers: 2
Chemistry, 22.06.2019 14:30
Aroom with dimensions 7.00mΓ8.00mΓ2.50m is to be filled with pure oxygen at 22.0βc 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
Chemistry, 23.06.2019 02:00
Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium
Answers: 1
Chemistry, 23.06.2019 04:00
What changes occur in the reaction indicated by the equation? check all that apply. the hydrogen nucleus loses protons. the oxygen nucleus gains protons. the bond in h2 is broken, and new bonds are formed between hydrogen and oxygen atoms. each electron associated with a hydrogen atom is shared with an oxygen atom.
Answers: 3
What are elements and how many elements discovered...
Mathematics, 28.01.2021 20:40
Chemistry, 28.01.2021 20:40
Mathematics, 28.01.2021 20:40
Mathematics, 28.01.2021 20:40
Mathematics, 28.01.2021 20:40
Mathematics, 28.01.2021 20:40
Social Studies, 28.01.2021 20:40
Mathematics, 28.01.2021 20:40