How many moles of oxygen atoms (not
molecules) are present in 6.41×1025 molecules
of dinitrog...
Chemistry, 17.11.2020 07:20 Averyruss9245
How many moles of oxygen atoms (not
molecules) are present in 6.41×1025 molecules
of dinitrogen pentoxide (N2O5)?
1. 532 mol
2. 106 mol
3. 32 × 1025 mol
4. 266 mol
Answers: 1
Chemistry, 22.06.2019 16:30
Asample of freon gas has a volume of 2.23 liters, a pressure of 4.85 kpa, and a temperature of -1.36°c. calculate the volume at a pressure of 1.38 kpa and a temperature of 5.5°c. (show work)
Answers: 1
Chemistry, 23.06.2019 05:00
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
Chemistry, 23.06.2019 05:30
Astudent made the lewis dot diagram of a compound as shown. mg is written with two dots shown on its top. an o is written on each side of mg. each o has six dots around it. an arrow is shown from one dot on mg toward the vacant space around the o on the right. another arrow is shown from the other dot on mg toward the vacant space around the o on the left. the title of the art is students lewis dot model. what is the error in the lewis dot diagram? an o atom should transfer all its six electrons to mg because the formula is mgo. both electrons of mg should be transferred to one o atom because the formula is mgo. the electrons should be transferred from each o atom to mg because mg has fewer electrons. the number of dots around mg should be four because it has to transfer two electrons to each o.
Answers: 2
Chemistry, 23.06.2019 18:30
Calcium hydroxide and hydrochloric acid react to form calcium chloride and water as shown in the chemical reaction. if the chemicals are present in exactly the correct ratios to fully use all of the ingredients, how many moles of water would be formed from 5 moles of hcl? (oh)2 + ? +
Answers: 1
English, 29.05.2020 21:59
Mathematics, 29.05.2020 21:59
Mathematics, 29.05.2020 21:59
Social Studies, 29.05.2020 21:59
Mathematics, 29.05.2020 21:59
Computers and Technology, 29.05.2020 21:59
English, 29.05.2020 21:59
Mathematics, 29.05.2020 21:59
Biology, 29.05.2020 21:59
Computers and Technology, 29.05.2020 21:59
Business, 29.05.2020 21:59
History, 29.05.2020 21:59