O You received no credit for this question in the previous attempt. Ch. Ex. 3- P

Question

O You received no credit for this question in the previous attempt. Ch. Ex. 3- Pure Substances 10 ports Select all that apply. Report problem Hint Guided Solution Print Which of the following are pure substances? calcium chloride, used to melt ice on road, consists oftwo elements, cakium and chlorine, i a fixed mass ratio. a References Sulfur consists of sulfur atoms combined into octatomic molecules Cytosine, a component of DNA, coasists of H, C, N, and O atoms bonded in a specific arrangement Baking powder, a leas ening agent, contains 26% to 30% sodiarrh dre gen carbonate 1nd 30% to 35% calcium dihydrogen phosphate by mass

Explanation / Answer

There 2 options are correct

1. Sulfur consist of sulfur atom combined into octaatomic molecules.

Alll atoms are sulfur. Apart from no elements or no compounds present with sulfur

2. Cytosine a compound of DNA, Consist of H,C,N and O atoms bonded in specific arrangement.

Cytosine is single compound which is having H,C,N and O atoms. It is a pure substance.

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