Comfortable Chemistry:)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Element | a substance whose atoms are all chemically the same , containing a definite number of protons
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| Compound | a substance containing more than one element. They have fixed compositions and always contain the same elements in the same elements in the same % by mass
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| Solution | a homogenous mixture containing a solvent (usually a liquid) and one or more solutes (liquid, solids, and/or gases). Note: Mixtures usually have more solvent than solutes
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| Mixture | two or more substances combined so that each substance retains its chemical identity.
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| Physical Properties | Properties which can be determined without changing the chemical identity of a substance (i.e. density, melting and boiling points).
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| Chemical Properties | Properties of a substance that are observed during a chemical reaction
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| Chromatography | A complex, but versatile method of separating compounds of a mixture.
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| Atom | is a neutral species
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| Ion | is a positive or negative species...When the element is not neutral.
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| ionic compound | contains a metal and nonmetal
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| covalent | contains 2 or more non-metals
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| When naming 2-element compounds | they must end in -ide
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| Group I | +1 charge
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| Group II | +2 charge
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| Group VI | -2 charge
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| Group VII | -1 charge
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| Cu | +1 or +2 charge
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| Fe | +2 or +3 charge
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| Chemistry | study of matter and its properties
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| Matter | anything that has mas and a volume
States of Matter, solid, liquid, and gas
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| Physical change | occurs when a substance alters its physical properties not its composition
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| Chemical change | occurs when a substance is converted into a different substance
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| Extensive properties | dependent on the amount of substance present. Mass and Volume
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| Intensive properties | independent of the amount of a substance present. Density
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| Homogenous mixture | same composition throughout. Ex. milk
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| Heterogeneous mixture | does not have the same composition throughout
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| Period | row of elements on the periodic table
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| Group | column of elements on the periodic table
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| Atomic number | whole number on periodic table. Identifies number of protons. The number of protons is unique to each element.
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| Atomic mass | decimal number on the periodic table. It is the total number of protons and neutrons. Determined by averaging the isotopes of each element.
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| Isotope | elements that have different number of neutrons
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| Proton | subatomic particle that resides in the nucleus. Positively Charged.
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| Electron | subatomic particle located in the electron cloud. Negatively Charged.
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| Neutron | subatomic particle resides in the nucleus. Neutral.
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| Neutral elements | have the same number of electrons and protons. When the element is not neutral, it is known as an ion
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To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
brooksfamily47
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