Unit 1 PS

A pure substance that cannot be broken down into other substances by chemical or physical means

Building blocks of matter, the smallest part of an element that still has all the properties of that element.

A pure substance that contains a group of TWO or more ATOMS held together by a chemical bond

A pure substance that is a special type of molecule made up of TWO or more DIFFERENT types of ATOMS held together by a chemical bond

two or more substances that are together in the same place but their atoms are NOT chemically bonded

a type of mixture in which the substances are so evenly distributed that it is difficult to distinguish one substance in the mixture from another

a type of mixture in which different materials can be distinguished easily

Characteristic that can be observed without changing the composition of a substance

Characteristic of a pure substance that describes its ability to change into different substances

a measure of the amount of matter in an object