elements, compounds, mixtures, Mixtures, Elements, Compounds, & Mixtures

element

-cannot be broken down into any other substance

- Made up of the same type of atoms (homogeneous)

-listed and classified on periodic table

-pure substance

compound

A substance made up of atoms of two or more different elements joined by chemical bonds

mixture

2 or more substances mixed together but NOT chemically bonded

matter

anything that has mass and takes up space (volume)

Solution

a homogeneous mixture of two or more substances evenly dispersed throughout

Pure Substance

A substance with a fixed composition. Made of one type of particles.

Compound

A substance made up of atoms of two or more different elements joined by chemical bonds

water

compound

dry ice (CO2)

compound

sugar

compound

Bismuth

element

salt

compound

milk

mixture

Uranium

element

elements

the simplest and most basic forms of matter; can't be broken down into any simpler substance; all known matter in the universe is made of this; made up of only 1 type of atom

atoms

some elements are made up of single, individual _________

molecules

make up some elements; have 2 or more atoms chemically bonded together

compound

when atoms of 2 or more different elements chemically combine, forming a new substance with completely different properties; all of the molecules are identical to each other

pure substance

when all of the molecules are identical to each other

element; compound

2 examples of pure substances

mixture

when different elements or compounds are physically mixed together but don't chemically react (retain their individual properties)

solid

solid, liquid, or gas: atoms vibrate in 1 position (not free to move around)

liquid

solid, liquid, or gas: molecules are all relatively close together and are free to move randomly and slowly

gas

solid, liquid, or gas: molecules are far apart and move very fast

solid

solid, liquid, or gas: shape is defined and doesn't take the shape of the container

liquid

solid, liquid, or gas: shape partially takes the shape of the container

gas

solid, liquid, or gas: shape fully takes the shape of the container

solid; liquid

solid, liquid, or gas: volume remains the same throughout (2)

gas

solid, liquid, or gas: volume changes with different containers

solid; liquid

solid, liquid, or gas: not compressible (2)