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| the amount of three dimensional space an object occupies |
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| the measure of the amount of matter |
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| anything that has mass and takes up space |
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| the smallest unit of an element that maintains the chemical identity of the element |
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| a pure substance that can not be broken down into simpler, stable substances and is made of one type of atom |
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| a substance that can be broken down into simple, stable substances and is made up of more than one type of atom |
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| a characteristic that can be observed or measured without changing the identity of the substance |
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| change that does not involve a change in the identity of the substance |
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| properties that depend on the amount of matter that is present. *Ex: mass, volume, energy |
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| properties that don't depend on the amount of matter present. *Ex: melting point, density, boiling point |
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| a physical change of a substance from one state to another |
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| a high temperature physical state of matter in which atoms lose most of their electrons |
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| definite shape and definite volume |
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| indefinite shape and definite volume |
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| indefinite volume and indefinite shape |
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| the study of the composition, structure, and properties of the matter, the changes it undergoes, and the energy changes that accompany these processes |
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| the study of most carbon-containing compounds. EXCEPT: CO, CO2, HCO3 |
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| the study of non-organic substances, many of which have organic fragments bonded to metals (organometals) |
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Definition
| the study of the properties and changes of matter and their relation to energy |
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| the identification of the components and composition of materials (quantitative and qualitative data) |
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| the study of processes occurring in living things |
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| the use of mathematics and computers to understand the principles behind observed chemical behavior and to design and predict the properties of new compounds |
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| any substance that has a definite composition. *Ex: sucrose, water, CO2. (pure things, ENTIRE periodic table) |
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| research carried out for the sake of increasing knowledge |
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| research that is carried out to solve a problem |
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| pure thing with unvarying composition |
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| a logical approach to solving problems by observing and collecting data, formulating and testing hypotheses, and formulating theories that are supported by data |
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| the use of the senses to obtain information |
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| a specific portion of matter in a given region of space that has been selected for study during an experiment or observation |
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| the experimental condition that remains constant |
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| any experimental conditions that change |
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an explanation of how phenomena occur and how data or events are related.
*visual, verbal, or mathematical |
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| a broad generalization that explains a body of facts or phenomena |
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Definition
| the number of the atom; it identifies the atom; NEVER changes; it is always equal to the number of protons |
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Definition
| the entire chemical number on the periodic table; it is the AVERAGE atomic mass in amus of all the naturally occurring isotopes; it must have a unit; if there is one mole of the unit then the unit is grams instead of amus. |
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Definition
PROTONS + NEUTRONS = ?
it is always a whole number because its a number of things, not a measurement; it is the atomic mass rounded off to a whole number when looking at averages from the chart |
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Definition
| if it's an atom, it's equal to the number of protons |
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Definition
MASS # - PROTONS
these change if you have isotope; the mass number will also change if you have isotopes |
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Definition
| the transformation of a substance into one or more new substances |
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