Physical and Chemical Properties

Physical and Chemical Properties

Physical and Chemical Properties Chapter 3 Section 1 Matter Matter is anything that has mass and takes up space

A substance is matter that has a uniform and unchanging composition. A substance is also known as a pure

substance. Examples of Pure substances Water is a pure substance because its always made of one oxygen and two hydrogens.

www.lenntech.com Salt is a pure substance because its always made of one sodium and one chlorine.

www.findhealer.com Substances that arent pure Saltwater is not pure because samples of salt water taken from different locations will have different amounts of salt and water.

Physical properties A physical property is a characteristic that can be observed or measured without changing the samples composition.

Ex. Density, color, odor, taste, boiling point, hardness Extensive and Intensive Extensive properties are dependent

upon the amount of substance present. Ex. Mass, length and volume depend on the amt present Extensive and Intensive

Intensive properties are independent of the amt of substance present. Ex. Density, color and taste do not depend on the amt of substance

present Chemical Properties A chemical property is the ability of a substance to combine with or change into one or more other

substances. Ex. The ability of iron to form rust. www.answers.com

Chemical Properties The inability of a substance to change into another substance is also a chemical property. Ex. Iron does not react with nitrogen

gas. This is still a chemical property Properties of Matter Physical Properties Intensive

Properties Chemical Properties Extensive Properties States of Matter

All matter that exists on Earth can be classified as one of these physical

forms called states of matter. exploration.grc.nasa.gov/.../rocket/state.html Solid A solid is a

form of matter that has its own definite shape and volume. mareltrout.net

Liquid www.battelle.org A liquid is a form of matter that flows, has constant

volume, and takes the shape of its container. Gas A gas is a form of matter that flows

to conform to the shape of its container and fills the entire volume of its container. www.xaraxone.com

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