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Properties of Matter. Matter. makes up our visible universe properties of matter are that it has: mass : amount of matter (atoms) in an object weight : force of gravity pulling on the mass volume : amount of space an object takes up density : the mass per unit volume of an object. Density.
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Matter • makes up our visible universe • properties of matter are that it has: • mass: amount of matter (atoms) in an object • weight: force of gravity pulling on the mass • volume: amount of space an object takes up • density: the mass per unit volume of an object
Density D = M/V D = density M = mass V = volume
Example problem • A piece of lead has a mass of 56.4 g and a volume of 5 ml. Calculate its density. given formula set up problem answer w/ unit of measurement M= 56.4 g D=M/V V= 5 ml 56.4g/5ml 11.2 g/ml ml is same as cm3 so sometimes see g/cm3
Properties of Matter • Physical properties • characteristics that can be easily observed without changing the substance that help identify it • example: mass, volume, color, melting point, boiling point, shape, texture, hardness… • Physical change • simply change a physical property without changing what it is • example: ripping and folding paper, sanding something, breaking it in half…
Chemical properties • describe a substance’s ability to change into a different substance • hard to observe and only becomes visible during a chemical reaction. • examples: flammability, chemically reactive • Chemical change (chemical reaction) • the actual process of changing a substance into something new • example: burning, rusting, mixing chemicals that react…
