physical and chemical changes
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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| a change that occurs without changing the identity of the substance | physical change
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| a change that occurs by changing the identity of the substance | chemical change
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| when two or more substance are combined physically | mixture
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| when two or more substances are combined chemically and cant be separated by physical. | compound
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| parts are mixed evenly throughout (same) | Homogeneous mixture
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| parts are uneven throughout (different) | heterogeneous mixture
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| type of mixture where the solution is dissolved/mixed evenly in the solvent | solution
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| the part of the solution that dissolves | solute
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| the part of the solution that the solute dissolves in | solvent
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| smallest unit of matter | atom
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| one of the 100 or more units that make up all matter, and found on the periodic table. | element
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| how much matter is in some thing | mass
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| the elements an compounds you start with in a reaction/equation | reactant
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| the elements and compound that you end with in a reaction/equation | products
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| the ability to react with another element or compound | reactivity
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| the number in front of the molecule | coefficients
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| the number of the bottom right of an element that tells how many atoms there are of the eelemts | subscript
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| group 1 a highly reactivate groups of metals that makes compounds with group 7 | Alkali metals
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| group 7 a highly reactive group of non-metals that makes compound with group 1 | halogens
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| group 8 a group of non-reactive, non metals that are all gases at room temperature. | noble gases
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Created by:
helen13
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