chem vocab unit 3 Word Scramble
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Term | Definition |
anion | a negatively charged ion |
homogeneous | type of mixture which is the same throughout and individual particles cannot be identified |
compound | a substance composed of two or more elements chemically combined |
solution | another term used for homogeneous mixture |
potential | energy of position |
Alkali Metals | name of the most reactive metallic family |
Heterogeneous | a type of mixture which is unevenly distributed and individual particles can be identified |
boiling point | the temperature at which a liquid changes into a gas |
cation | name of a positively charged ion |
ion | an atom which has either gained or lost electrons |
phaser | common weapon used on Star Trek |
mass | the amount of matter in a substance |
temperature | this remains constant during a phase change |
mass number | the sum of the # of neutrons plus the # of protons |
accurate | a value which is exact, or right on the correct value |
Deci | metric prefix meaning 10 |
Precise | when several values are close together, but not necessarily exact |
kinetic | the energy of motion |
melting point | the temperature at which a solid changes to a liquid |
halogens | chemical family with 7 valence electrons |
element | a pure substance made of only one type of atom |
solution | Mixture that shows the tyndall effect and has particles large enough to reflect light but too small to be filtered. |
Bohr | Solar system model of the atom was proposed by him. |
charge | can be calculated by subtracting electrons from protons |
mixture | a substance composed of two or more elements or compounds not chemically combined |
physical change | when the shape or phase of a substance changes, yet it could still be changed back to the original substance |
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