anything that has mass and takes up space
used to measure the volume of a liquid
measures the amount of matter within an object - does not depend on gravity
the amount of space an object occupies
is affected by the amount of gravity pushing down on an object
Volume of a regular shaped object
= length x width x height
Volume of an irregular shaped object
displacement = v2 - v1
Conservation of Matter
a change can occur in a substance either physically or chemically but mass can neither be created or destroyed
Density of a substance
is constant no matter how much or little you have of that same substance
Density of H2O
Liquid = 1 g/mL Solid = 0.91 g/mL Gas = 0.0006 g/mL
the basic unit of matter
when two or more different atoms bond together
when two or more atoms bond together, it doesn't matter if they are the same or different
molecules close together and vibrate
molecules have some space between and slide
molecules have a lot of space between and flow
can be changed without changing the actual substance
is what is changed to turn one substance in a brand new substance
liquid to a gas
gas to a liquid
liquid to a solid
solid to a liquid
gas to a solid or a solid to a gas
positive charge found in the nucleus = Atomic #
negative charge found in the electron cloud = Atomic #
neutral charge found in the nucleus = Atomic Mass - Atomic #
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