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Unit 1

Properties of Matter

TermDefinition
Solids Definite Volume and Definite Shape
Solids Least amount of energy compared to liquids/gases and theleast amount of parrticle motion compared to liquids/gases that move slower
Liquids Definite Volume and Indefinite Shape
Liquids Less energy than a gas and more energy than a solid;lower particle energy than a gas and more particle motion than a solid.
Gases Indefinite volume and indefinite shape
Temperature Measure of particle motion
Higher Temperature cause greater particle motion and move more quickly
Isomer molecules with the same number of atoms buy arranged into a different shape
Water polar molecule due to uneven sharing of electrons
Noble Gases least reactive elements due to full outer shell of valence electrons
Most Reactive Elements elements with 1 or 7 valence electrons
Valence Electrons electrons located in the outer shell of an atom
Density Mass divided by volume;remains the same no matter the size of an object
Density/Buoyant Force Relationship An increase in density equals an increase in buoyant force of the fluid
Salt Water Density more dense than freshwater because it has more solutes dissolved in the solution
Matter changes phases when temperature is heated or cooled but, remains the same type of matter;physical change
Viscosity resistance of a fluid to flow
Carbon Dioxide Gas cannot remain in solution when the liquid is heated or the pressure is decreased
Physical Changes do not cause a change in atom arrangement
Physical Change Examples Eating ice, Biting an apple, Freezing water, Absorbing Water Molecules
Chemical Changes causes rearrangement of atoms producing a new substance
Chemical Change Examples Combustion of Gasoline, Cooking Food, Digestion of Food, Production of Gas
Density of Water 1.0 gram/mililiter(1.0mL);Objects with a density greater than 1.0 g/mL sink in water while objects with a density less than 1.0g/mL float in water
Water Different densities in different phases, unique that it expands when freezes;ice is less dense than water, causing ice to float
Created by: goodwynkj71
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