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| the study of carbon containing compounds (synthesis of drugs) |
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| The study of metal containing compounds. (Catalyst Chemistry) |
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| Chemistry with high precision. (Forensics, Quality Control) |
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| Cross between biology and chemistry. |
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| Physics of chemistry. (heavy computations) |
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| anything that takes up space and has mass. |
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| the science that deal with matter ( the structure and properties of matter and the transformations from one form of matter to another) |
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Definition
definite shape and definite volume, not compressible.
*video |
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Definition
have no definite shape, but do have a defined volume, able to flow.
*video |
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Definition
have no definite shape or volume, molecules very far apart,
Are highly compressible.
*video |
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Definition
| - the simplest type of substance with unique physical and chemical properties. An element consists of only one type of atom. It cannot be broken down into any simpler substances by physical or chemical means. |
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Definition
a structure that consists of two or more atoms that are chemically bound together and thus behaves as an independent unit.
*discreet package of greater than or equal to 2 atoms tightly bound together (gases, liquid, solids, typically not conducting). |
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Definition
a substance composed of two or more elements which are chemically combined.
*Allowed to react chemically therefore cannot be separated by physical means. |
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a group of two or more elements and/o compounds that are physically intermingled.
*Physically mixed therefore can be separated by physical means; in this case by a magnet. |
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Definition
| has the same properties throughout the sample. (Solutions) (ex. stirred/dissolved Sugar water) |
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Definition
| consists of two or more phases that differ in properties. (ex. Oil/Water, Oil/Vinegar) |
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Scientific method (1.2)
step 1 |
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Definition
| 1.) Empirical Facts (observations, data) |
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Scientific method (1.2)
step 2 |
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Definition
| 2.) Scientific Laws (tested generalizations) |
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Scientific method (1.2)
step 3 |
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Definition
| 3.) Hypothesis (tentative explanations) |
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Scientific method (1.2)
step 4 |
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Definition
| 4.) Theory (tested explanations) |
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| Law of Definite (or constant) Proportions |
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Definition
| No matter the source, a particular compound is composed of the same elements in the same parts (fractions) by mass. |
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Definition
1.) matter is composed, indivisible particles. (atoms)
2.) all atoms of a particular element are identical in mass and other properties.
3.) different elements have different atoms that differ in mass and other properties.
4.) atoms combine in certain whole-number ratios.
5.) In a chemical reaction, atoms are merely rearranged to form new compounds; they are not created, destroyed, or changed into atoms of any other elements. |
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| Law of Multiple Proportions |
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Definition
| Whenever two elements form more than one compound, the different masses of one element that combine with the same mass of the other element are in ratio of small whole numbers. |
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good portion of non-metallic elements exist
*H2, O2,F2,N2,Cl2, Br2, I2 |
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| gives the exact molecular package |
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| indicates connectivity and sometimes 3-D shape (most informative |
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Definition
| "the measure of elements" |
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| how much a substance contains (kg; g) |
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| Law of Conservation of Mass |
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Definition
| No detectable gain or loss of mass occurs in Chemical Reactions. Mass is conserved.. |
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Term
| Law of Multiple Proportions |
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Definition
| Whenever two elements form more than one compound, the different masses of one element that combine with the same mass of the other element are in ratio of small whole numbers. |
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