GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Multiple substances joined together but not chemically combined
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Two atoms of the same element
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Two or more atoms of different elements chemically combined
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Two or more substances that can be physically separated
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Detailed explanation-1: -A mixture is a material composed of two or more simpler substances in chemistry. Such materials can be compounds or chemical elements. A mixture of liquids, solids, or gases can be produced. When sugar is put in water, for example, it forms a mixture, then it dissolves to create a solution.
Detailed explanation-2: -A heterogeneous mixture is a mixture of two or more chemical substances (elements or compounds) where the different components can be visually distinguished and easily separated by physical means.
Detailed explanation-3: -If two or more substances (elements or compounds) are mixed together in any proportion, and they do not undergo any chemical change but retain their properties, the resulting substance is called mixture.
Detailed explanation-4: -(a) A mixture is a combination of two or more substances, which do not react with each other. Examples: sugar and water, sugar and sand, etc.