Chemistry - Matter

Liquid

________- has a definite volume, has an indefinite shape- atoms are close together- atoms can overcome attractive forces to flow.

Intensive property

________- a property that depends on the type of matter in a sample, not the amount of matter (ex.

Extensive property

________- a property that depends on the amount of matter in a sample (ex.

Homogenous solution

________- denoted by (aq), which means aqueous- NaCl (aq)

Heterogeneous mixture

________- a mixture that is not uniform in composition- soil is composed of sand, dirt, rocks, and pebbles- soda is a gas dissolved in a liquid- cereal in milk.

own chemical

Mixture- refers to the combinations of two or more substances in which each substance retains its ________ identity.

Element

________- a substance that can not be broken down into other substances- ex: iron, copper, oxygen.

definite volume

Solid- has a(n) ________, has a definite shape- atoms are packed together in fixed positions- strong attraction forces between atoms- only vibrate in space.

matter

has mass and occupies space, meaning it has volume -a measure of the quantity of matter, density

phases of matter

solid, liquid, gas

solid

has a definite volume, has a definite shape -atoms are packed together in fixed positions -strong attraction forces between atoms -only vibrate in space

liquid

has a definite volume, has an indefinite shape -atoms are close together -atoms can overcome attractive forces to flow

gas

has no fixed volume, has no definite shape -conforms to the volume and shape of a container -can compress to occupy a smaller volume and expand to occupy a larger volume -fairly week attractive forces

physical properties

properties that can be measured or judged without changing the basic identity of the substance -color, odor, hardness, density, melting point, boiling point

compound two or more elements that are chemically combined in fixed proportions and can be decomposed by chemical means -ex

H20 (2 Hydrogen 1 Oxygen)

mixture

refers to the combinations of two or more substances in which each substance retains its own chemical identity

homogenous mixtures

a mixture that is uniform throughout in its consistency -air -salt dissolved in water -brass is a solid mixture of copper and zinc

homogenous solution

denoted by (aq), which means aqueous -NaCl(aq)

heterogeneous mixture

a mixture that is not uniform in composition -soil is composed of sand, dirt, rocks, and pebbles -soda is a gas dissolved in a liquid -cereal in milk

intensive property

a property that depends on the type of matter in a sample, not the amount of matter (ex

extensive property

a property that depends on the amount of matter in a sample (ex

Firewood Burning

chemical or physical change

Ice melting

chemical or physical change

Mass

extensive or intensive

Combustible

extensive or intensive

Density

Intensive or extensive

The mass of the chemical was 50 g

Intensive or extensive

the boiling point of ethyl alcohol is 77 C

Intensive or Extensive

baking soda reacting with acetic acid

Chemical or physical change

the solubility of NaCl in water is 40g/100ml of water

Intensive or extensive

the chemical was red

Physical or chemical property