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21 May, 03:57

8. A student passes a magnet over 10 g of a powder. Four grams of the powder stick to the magnet, while 6 g do not. Which of these identifies the substance? *

element

compound

mixture

solution

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Answers (2)
  1. 21 May, 04:53
    0
    mixture

    Explanation:

    The properties of the components of substance are different. One component has magnetic properties, another does not. So, we have at least 2 individual substances that were mixed together. So, we have a mixture.
  2. 21 May, 07:11
    0
    Answer: Option (c) is the correct answer.

    Explanation:

    An element is defined as a substance which can never be broken down into simpler substances.

    For example, sodium is a metal and it contains only atoms of sodium.

    A compound is defined as a substance that contains two or more different elements that are chemically combined together in a fixed ratio by mass.

    For example, KCl is a compound in which atoms are present in 1:1 ratio.

    A mixture is defined as a substance in which two or more number of different substances are mixed together. Particles of a mixture never combine chemically to each other.

    A solution is also known as a homogeneous mixture because in it the solute particles are evenly distributed.

    So, when a student passes a magnet over 10 g of a powder. Four grams of the powder stick to the magnet, while 6 g do not then this means that particles were not chemically combined together and they are also not evenly distributed into the solution.

    Thus, we can conclude that mixture identifies the substance.
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