Chemistry, 14.07.2020 23:01 needhelpwithHW10
A 5.15 g sample of calcium sulfide was decomposed into its constituent elements, producing 2.86 g of calcium and 2.29 g of sulfur. Which of the following statements are consistent with the law of constant composition (definite proportions)? Select all that apply. A.Every sample of calcium sulfide will have 44.4% mass of calcium. B.Every sample of calcium sulfide will have 2.86 g of calcium. C.The mass ratio of Ca to S in every sample of calcium sulfide is 1.25.D. The ratio of calcium to sulfur will vary based on how the sample was prepared. E.The mass percentage of calcium plus the mass percentage of sulfur in every sample of calcium sulfide equals 100%.
Answers: 3
Another question on Chemistry
Chemistry, 21.06.2019 17:50
An aqueous solution of potassium hydroxide is standardized by titration with a 0.194 m solution of hydrobromic acid. if 25.2 ml of base are required to neutralize 24.2 ml of the acid, what is the molarity of the potassium hydroxide solution? m potassium hydroxide
Answers: 2
Chemistry, 22.06.2019 05:00
When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!
Answers: 1
Chemistry, 22.06.2019 12:00
Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt
Answers: 1
Chemistry, 23.06.2019 02:40
Calculate the standard enthalpy of formation of liquid methanol, ch3oh(l), using the following information: c(graphite) + o2 latex: \longrightarrow ⟶ co2(g) latex: \delta δ h° = –393.5 kj/mol h2(g) + o2 latex: \longrightarrow ⟶ h2o(l) latex: \delta δ h° = –285.8 kj/mol ch3oh(l) + o2(g) latex: \longrightarrow ⟶ co2(g) + 2h2o(l) latex: \delta δ h° = –726.4 kj/mol
Answers: 3
You know the right answer?
A 5.15 g sample of calcium sulfide was decomposed into its constituent elements, producing 2.86 g of...
Questions
Mathematics, 25.02.2020 18:56
English, 25.02.2020 18:56
Mathematics, 25.02.2020 18:56
Social Studies, 25.02.2020 18:56
Mathematics, 25.02.2020 18:56
