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30 December, 22:41

The mass of a length of metal wire is 45 g. When the wire is placed in a graduated

cylinder with water, it displaces 5 mL of water. What is the density of the metal?

A. 0.1 g/cm3

B. 9 g/cm3

C. 40 g/cm3

D. 225 g/cm3

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Answers (2)
  1. 30 December, 23:11
    0
    5 ml=5 cm³, density=mass/volume=45/5 = 9 g/cm³ therefore answer B
  2. 31 December, 02:39
    0
    The answer to your question is 9 g/ml or 9 g/cm³

    Explanation:

    Data

    mass = 45 g

    volume = 5 ml

    density = ?

    Process

    1. - Consider that the volume displaced is equal to the volume of the wire.

    2. - Write the formula to calculate the density

    density = mass/volume

    3. - Substitution

    density = 45/5

    consider milliliters and cubic centimeters are the same.

    4. - Result

    density = 9 g/ml or 9 g/cm³
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