SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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H2O (Water)
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CO2 (Carbon Dioxide)
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NH3 (Ammonia)
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H2 (Hydrogen)
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Detailed explanation-1: -A mixture is a material system made up of two or more different substances, which are mixed but not combined chemically.
Detailed explanation-2: -A compound is a substance that contains two or more elements chemically combined in a fixed proportion. The elements carbon and hydrogen combine to form many different compounds. One of the simplest is called methane, in which there are always four times as many hydrogen particles as carbon particles.
Detailed explanation-3: -In chemistry, a compound is a substance made up of two or more different chemical elements combined in a fixed ratio. When the elements come together, they react with each other and form chemical bonds that are difficult to break. These bonds form as a result of sharing or exchanging electrons between atoms.
Detailed explanation-4: -A compound is a pure substance made of two or more elements chemically combined in a set ratio.