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CHEMCHAP1
study guide
| Question | Answer |
|---|---|
| Chemistry | Study of the nature of matter and changes matter undergos |
| Matter | Anything that possesses mass and occupies space |
| What is the "nature of matter" | Composition of a particular kind of matter, forces holding it together, observable properties |
| physical change and provide examples | does not change chemical composition- ice to water |
| chemical change and provide examples | results in the formation of new substance- decomposition, embalming, cremation |
| energy | ability to do work |
| kinetic energy | energy in motion- fluid moving through the body |
| potential energy | stored energy- water at a closed damn |
| inorganic chemistry | the study of compounds usually containing elements other then carbon |
| organic chemistry | study of carbon compounds |
| biochemistry | study of compounds produced by living organism |
| embalming chemistry | study of changes in matter related to preserving & disinfection of a body |
| thanatochemistry | study of physical and chemical change in the human body |
| Identify the common set of units used by all scientists | Metric, SI |
| Standard unit of length | meter |
| Standard unit unit of volume | liter |
| Standard unit of mass | kilogram |
| Standard unit of heat | Calorie |
| Mega | 10^6 M |
| Kilo | 10^3 k |
| Deci | 10^-1 d |
| Centi | 10^-2 c |
| Milli | 10^-3 m |
| Micro | 10^-6 u |
| Nano | 10^-9 n |
| Types of matter | elements,compounds,mixture |
| states of matter | solid,liquid,gas |
| ionic bonds | transfers electrons |
| covalent bonds | shared electron |
| 4 class of compound | Acid, bases, salt, oxides, electrolytes |
| methane | simplest organic |
| law of conservation of matter | matter cant be created nor destroyed |
| Physical Properties | Characteristic that can be observed without altering chemical composition |
| Three typical states of matter | melting.boiling,freezing |
| Melting point | temperature at a given pressure changes from solid to liquid |
| Boiling point | Liquid state to gaseous state |
| Solubility | how much of something will dissolve in a given amount of water |
| density | expresses the relationship between its mass and volume |
| Specific Gravity | ratio of the mass of the substance to the mass of an equal volume of water at the same temperature |
| Chemical Property | Characteristic that can be observed when substance is interacting with other forms of matter |