science notes 8+9 Word Scramble
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Question | Answer |
chemistry | the study of properties and how matter changes |
matter | -takes up space and has volume.-has physical and chemical properites.-made up from elements. |
Properites of Matter | physical and chemical properties |
Physical Properties | can be observed without changing the subject |
Chemical Properites | ability to change into somehting new |
Element | pure substance that cannot be broken down into another substance. Simpleist of all substances and are found on the periodic table. Elemnets are made up opf atoms. |
Atoms | smallest particle that can mke up and element. Can not be broken down any farther |
Molecules | Two or more atoms of elemts held together by a bond. Many elements can exist alone, other elemnets must always be in molecule form. |
Compunds | two or more different elemnets chemically combined by bonds in a set ratio to create a new substance. new substances have different physical and chemical properites than those of the elements which made it. Compunds are represented by formulas. |
Mixtures | Two or more substances combined, but not chemicaly combined bonded together. Each substance keeps its own properties. Substances are nort combined in any set ratio. Either homgenously mixed or heterogeneous mixed |
Homogeneous | evenly kixed |
Heterogeneous | unevenly mixed |
Substance | a single kind of matter that is pure |
chemical bond | the force of attraction between two atoms |
chemical formula | tells the elements and the ratio of atoms in the compund |
solution | a kind of homogeneous mixture |
Created by:
scrlover93
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