Yo anyone help me with this question Fill in the following text using key terms from this section of the text. You can find a list of the key terms in the Module Overview. Terms may or may not be used more than once. [ Select ]
is anything that has mass and takes up space.
[ Select ]
is the study of the properties of matter and how matter changes. In chemistry, a
[ Select ]
is a single kind of matter that is pure.

Every form of matter has two kinds of properties. A
[ Select ]
property is observed without changing the substance into another substance. Examples of
[ Select ]
properties are hardness, texture, color, and ability to dissolve in water. A
[ Select ]
property is the ability of a substance to change into different substances. Some
[ Select ]
properties are burning and rusting.

An
[ Select ]
is a pure substance that cannot be broken down into any other substance, and is identified by its specific physical and chemical properties. An
[ Select ]
is the basic particle that makes up an element. A
[ Select ]
is the force that holds two atoms together. Atoms often combine to form
[ Select ]
, which are groups of two or more atoms held together by
[ Select ]
.

When elements are chemically combined, they form
[ Select ]
having properties that are different from those of the uncombined elements. A
[ Select ]
is a pure substance made of two or more elements chemically combined in a set ratio. A
[ Select ]
shows the elements in the compound and the ratio of atoms. For example, the chemical formula for carbon dioxide is CO2. In carbon dioxide, there are always two oxygen atoms and one carbon atom.

Elements and compounds are pure substances, but most of the materials you see every day are not. Instead, they are
[ Select ]
, which are made of two or more substances that are together in the same place, but are not chemically combined. Mixtures differ from compounds in two ways. Each substance in a mixture keeps its individual properties. Also, the parts of a mixture are not combined in a set ratio.

In a
[ Select ]
mixture, you can see the different parts. The substances in a
[ Select ]
mixture are so evenly mixed that you cannot see the different parts. A
[ Select ]
is an example of a
[ Select ]
mixture. Air is a
[ Select ]
of nitrogen gas, oxygen gas, plus small amounts of other gases. Unlike compounds, mixtures are easily separated into their components. For example, iron filings can be easily removed from salt with a magnet.