Foundations of Chemistry

20 terms by tpayer 

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Matter

Anything that has mass and takes up space

Atom

A small particle that is a building block of matter

Electron

Negatively charged particles that surround the nucleus of an atom

Proton

Positively charged particle that is in the nucleus of an atom

Neutron

Neutrally charged particle that is in the nucleus of an atom

Substance

Matter with a composition that is always the same

Element

A substance that consists of just one type of atom

Compound

A type of substance containing atoms of two or more different elemetnts chemically bonded together

Mixture

Matter that can vary in composition

Heterogeneous Mixture

A type of mixture in which the individual substances are not evenly mixed

Homogeneous Mixture

A type of mixture in which the individual substances are evenly mixed

Dissolve

To form a solution by mixing evenly

Physical Property

A characteristic of matter that you can observe or measure without changing the identity of the matter

Mass

The amount of matter in an object

Density

The mass per unit volume of a substance

Solubility

The ability of one substance to dissolve in another

Physical Change

A change in size, shape, form, or state of matter in which the matter's identity stays the same

Chemical Property

A characteristic of matter that can be observed as it changes to a different type of matter

Chemical Change

A change in matter in which the substances that make up the matter change into other substances with new physical and chemical properties

Concentration

The amount of substance in a certain volume

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