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
element; compound
2 examples of pure substances
mixture
2 or more substances mixed together but NOT chemically bonded
Compound
A substance made up of atoms of two or more different elements joined by chemical bonds
compound
A substance made up of atoms of two or more different elements joined by chemical bonds
Pure Substance
A substance with a fixed composition. Made of one type of particles.
Solution
a homogeneous mixture of two or more substances evenly dispersed throughout
matter
anything that has mass and takes up space (volume)
dry ice (CO2)
compound
salt
compound
sugar
compound
water
compound
Bismuth
element
Uranium
element
molecules
make up some elements; have 2 or more atoms chemically bonded together
milk
mixture
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; liquid
solid, liquid, or gas: not compressible (2)
gas
solid, liquid, or gas: shape fully takes the shape of the container
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: volume changes with different containers
solid; liquid
solid, liquid, or gas: volume remains the same throughout (2)
atoms
some elements are made up of single, individual _________
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
pure substance
when all of the molecules are identical to each other
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
mixture
when different elements or compounds are physically mixed together but don't chemically react (retain their individual properties)