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Classify each of the following substances as an element, compound, or mixture. (a) Calcium chloride, used to melt ice on roads, consists of two elements, calcium and chlorine, in a fixed mass ratio. (b) Sulfur consists of sulfur atoms combined into octatomic molecules. (c) Baking powder, a leavening agent, contains 26% to 30% sodium hydrogen carbonate and 30% to 35% calcium dihydrogen phosphate by mass. (d) Cytosine, a component of DNA, consists of H, C, N, and O atoms bonded in a specific arrangement. (a) Calcium chloride Element Compound Mixture (b) Sulfur Element Compound Mixture (c) Baking powder Element Compound Mixture (d) Cytosine Element Compound Mixture

Sagot :

mickymike92

Answer:

A. Calcium chloride - Compound

B. Sulfur - Element

C. Baking powder - Mixture

D. Cytosine - Compound

Explanation:

An element is a substance which consists of the same type of atoms and which cannot be split into simpler units by ordinary chemical processes. Examples of elements include hydrogen, carbon, oxygen etc.

A compound is a substance consisting of two or more elements chemically combined in a fixed mass ratio together whose properties differ entirely from the constituent elements. Examples of compounds include, water, carbon dioxide, etc.

A mixture is a substance consisting of two or more constituents that are physically joined together in any given ratio and whose property is a sum of the individual properties of the constituents.

A. Calcium chloride - Compound

B. Sulfur - Element

C. Baking powder - Mixture

D. Cytosine - Compound

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