SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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pure substance, element
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pure substance, compound
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homogeneous mixture
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heterogeneous mixture
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Detailed explanation-1: -Ex: Hydrogen gas is a pure substance, as it is made up of only Hydrogen atoms or molecules. Carbon, gold, & nitrogen are other elements (pure substances).
Detailed explanation-2: -Examples of pure substances include tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium chloride) and baking soda (sodium bicarbonate). Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are chemical elements.
Detailed explanation-3: -Oxygen contains only one type of constituent particle i.e.; Oxygen molecules, therefore it is a pure substance.
Detailed explanation-4: -Hydrogen gas. Gold metal. Sugar (sucrose) Baking soda (sodium bicarbonate) Ammonia. Diamond. Copper wire. Silicon chip. More items •30-Aug-2018