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e Edit View History Bookmarks People Window Help MasteringChemistry: pre-lecture ch1 Secure https://session.masteringchemistry.com/myct/itemView?offset next&assignmentProblemID; CHEM 111 General Chemistry I Spring 2017 pre-ecture ch1 Chapter 1 Multiple Choice Question 32 Chapter 1 Multiple Choice Question 32 Part A Which of the following is an example of the law of multiple proportions? o Two different samples of table salt are found to have the same ratio ofsodium to chlorine. Two different compounds formed from carbon and oxygen have the following mass ratios: 1.33 g O: 1 g C and 2.66 g o: 1g C. The atomic mass of bromine is found to be 79.90 amu. A sample of chlorine is found to contain three times as much Cl35 as Cl37. Nitrogen dioxide always has a mass ratio of 2.28 go: 1 g N. Submit My Answers Give Up

Explanation / Answer

option 4 is correct.

Diamond is the pure substance among the given substances. Diamond is made up of only one type of atoms that is with carbon atoms. So it is a pure substance.

option 1 is not correct because air is composed of different types of gases so it is a homogenous mixture.

option 2 is not correct because sea water is salt made up of sodium chloride and water.

option 3 is not correct

milk is not a pure substance because it is made up of mixture of different substances not with only one atom.

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