Answers: 3
Chemistry, 22.06.2019 12:00
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
Chemistry, 22.06.2019 20:20
Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 3
Chemistry, 22.06.2019 21:00
What is the chemical formula for the compound formed between sodium and flour one
Answers: 1
Chemistry, 23.06.2019 01:00
Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released
Answers: 3
The physical properties of 10 grams of iron are the same as the properties of 20 grams of iron....
Biology, 09.07.2019 18:00
Geography, 09.07.2019 18:00
Spanish, 09.07.2019 18:00
Mathematics, 09.07.2019 18:00
History, 09.07.2019 18:00
Mathematics, 09.07.2019 18:00
Biology, 09.07.2019 18:00
Mathematics, 09.07.2019 18:00
Mathematics, 09.07.2019 18:00
Social Studies, 09.07.2019 18:00
History, 09.07.2019 18:00
Mathematics, 09.07.2019 18:00
Mathematics, 09.07.2019 18:00
Mathematics, 09.07.2019 18:00
Mathematics, 09.07.2019 18:00