Vocab review for final exam
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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| Density | mass per unit volume
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| Mass | the quantity of matter as determined from its weight or from Newton's 2nd law of motion
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| Volume | the amount of space, measured in cubic units, that an object or substance occupies
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| Ion | an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons
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| Isotope | any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in the nucleus, or different atomic weights
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| Transition Elements | any element in any series of elements with atomic numbers 21-29, 39-47, and 89-107, that in a given inner orbital has less than a full quota of electrons
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| Representative Elements | the metals of groups 1 & 2 are called the representative elements
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| Synthesis | the forming or building of a more complex substance or compound from elements or simpler compounds
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| Decomposition | the seperation of a chemical compound into elements or simpler compounds
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| Single Replacement | a single uncombined element replaces another in a compound
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| Double Replacement | the cations and anions of two different compounds switch places
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| Element Molecule | a molecule that has only one type of element in it
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| Compound Molecule | a molecule that has 1 or more different types of elements in it
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| Law of Conservation of Mass | matter canbe neither created nor destroyed
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| Reactant | any substance that undergoes a chemical change in a given reaction
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| Product | a substance obtained from another substance through chemical change
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| Chemical Equation | a symbolic representation of a chemical reaction
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| Chemical Formula | a way of expressing information about the atoms that constitute a particular chemical compound
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| Coefficient | a number placed in front of a term in a chemical equation to indicate how many molecules (or atoms) take part in the reaction
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| Subscript | the number of atoms in the preceding element
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| Atom | a basic unit of matter that consisits of a dense, central nucleus surrouded by a cloud of negativly charged electrons. the nucleus contaiins protons and neutrons.
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| Atomic Mass | average mass of atoms of an element
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| Atomic Number | the number of protons and electrons in an atom
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| Valence Electron | electron/electrons on the valence electron shell(the outermost shell)
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| Nucleus | the center of an atom that contains the protons and neutrons. electrons orbit the nucleus with a negative charge
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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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