Chem Objective one- 1a, 1b
define three states of matter, in terms of volume and shape
Solid-Definite volume, definite shape
Liquid-Definite, no definite shape
Gas- No definite, no definite shape
what state of matter has the most organized particles?
Solid-Because they are tightly packed together
describe the traditional phase progression of water as It is heated from -12°C to 150°C. Include descriptions of the movement and positions.
The water starts in a solid phase considered ice. The molecules are Tightly packed together. As heeat is slowly added, it will transition into a liquid state where the molecules then gain enough energy to break free from the position they start moving more freely. The spacing starts to get larger. Lastly, it will enter a Gas phase Molecules will move completely freely and erratically, and the space between them is even greater.
define element, Give example
Simplest pure substance composed of one material
Ex.) Gold, aluminum, iron
define compound, give example
Elements held together by bond, consist of two or More elements. Ex.) water, Hydrogen peroxide, carbon dioxide
define mixture, Give example
Two or more substances that are physically combined not chemically bonded. Ex.) Kool-Aid
explain why something cannot be both a pure substance and a mixture
A pure substance consist of only one type of particle and its particles are identical. A mixture consist of two or more substances physically combined and dont have identical particles
what is the term for the smallest sample of an element? End of a compound?
Element-An atom
Compound-Molecule
describe the difference and similarities between homogeneous mixture and a heterogeneous mixture
A homogenous mixture is the same throughout, and The composition is uniform. A heterogeneous mixture Does not look the same throughout, and does not have uniformity.
Define an atom
An atom is the basic unit of a chemical element
define a molecule
A group of atoms bonded together
Define matter
anything that has mass and takes up volume