# Chemstry

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A 4.1089 g piece of aluminum wire with a circular cross section is 42.06 cm long and has density of 2.6989 g/cm3.
What is the volume of the wire and the cross sectional area of the wire in cm2?

• Chemstry -

mass = volume x density
You know mass and density; solve for volume of the wire

Then volume of wire = pi*r^2*length
Solve for pi*r^2 = area

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