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Chem-Sturnick Test 1
equivalencys/conversions/terms
| Question | Answer |
|---|---|
| 1M= KM | 1.609 |
| 1YD= ft | 3 |
| 1 Gal= Qt | 4 |
| 1Qt= Pt | 2 |
| 1Pt= c | 2 |
| 1Ft= cm | 30.48 |
| 1Mi= yrd | 1760 |
| 1Kg= lbs | 2.2 |
| 1Lbs= g | 4536 |
| 1km= mi | .6214 |
| 1in= cm | 1.54 |
| 1L= Qts | 1.06 |
| 1m= in | 39.37 |
| 1in= cm | 2.54 |
| 1ft= in | 12 |
| Precision | measures how closely data is grouped |
| Gas | takes shape of containerundefined volume (takes volume of container)Compressionable |
| Micro | 10^-6 |
| Mass is- | the quantity of matter in an object |
| experimantation is- | testing in a controlled environment.It must be applicable and reproduceable |
| Theory- | Answers how and why, generally useful but not 100% applicable. |
| ---------------------------Base-------------------------------- | Kilo(10^3)Hecta(10^2)Deka (10^1)BASEDeci(10^-1)Centi(10^-2)Milli (10^-3)Micro (10^-6) |
| immiscible | layered |
| Volume= | space |
| Weight based on | Gforce |
| Law of Conservation of Energy | Energy can be neither created nor destroyed |
| Law | summarizes all observable behavior(no known acceptions) |
| Milli | 10^-3 |
| Density= | mass/volume |
| Volume= | mass/density |
| Mass= | density*volume |
| SI unit of mass | Kilograms (Kg) |
| SI unit of volume | Liter or dm^3 |
| SI unit of time | sec |
| SI unit of length | meters (m) |
| SI unit of temp | Kelvin(K) |
| Pure substance | Constant compositionElements-simplest form (atoms)Compounds-2 types of atoms combined in a specific mass ratio |
| Solid | defined shape and volume |
| Base | 10^0 |
| Accuracy | measures how closely data agrees w/ known or calculated value |
| Observation | Measurement of some aspect in natureQualitative-doesn't contain numeric observationQualitative- Has number w/ it |
| Hypothesis | educated guess- possible explaination- idea why it happens |
| Centi | 10^-2 |
| miscible | mixed |
| mixture | greater than one pure substance, composition variesHomogenious- same throughoutHeterogenious- Composition varies throughout |
| Conservation of Mass | Matter is neither created nor destroyed in a chemical reaction |
| Sig Fig Zeros | Leading-(Before non-zeros)=Nevercaptive-(between non-zeros)=AlwaysTrailing-with decimal-Yes -without decimal-No |
| Kilo | 10^3 |
| Chemistry | The study of matter and how it interacts |
| deci | 10^-1 |
| Physical properties | Those properties displayed w/out changing its composition |
| Chemical properties | Those that a substance displays only through changing it's composition |
| Specific Gravity | ratio of densitys where-Density of gravity,T/Density of water,T |
| Liquid | Indeterminate shape takes shape of container. Defined volume |
| Metric | Moving decimal |
| Scaler | 1 dimensional |
| 1 tblsp | 3tsp |
| Seperating mixtures through physical changes | Decanting, Distillation, Filtration |
| Decanting | carefully pouring off |
| Distillation | A process where the mixture is heated to boil off the more volatile (easily evaporable) liquid |
| Filtration | mixture is poured through filter paper, usually held in a funnel |
| SI unit of energy | Joule (J) |
| calorie | (c)amount of energy to raise temp of 1g of water by 1 degree Celsius. =4.184 joules |
| Calorie | (Cal)=1000 calories |
| Kilowatt-hour | (kwh)=3.60x10^6 joules |
| Heat capacity | quantity of thermal energy required to raise the temp of given amt of the substance by 1 degree celsius.If exprssed in grams it is called the specific heat capacity |
| Kelvin | (K) same size as celcius, but avoids negative temps water freezes- 273 KWater boils at 373 K |
| 1L= | 10^3cm |
| 1dm^3=1L= | 103cm3=10^3ml |
| 1ml3= | 10^3dm^3 |
| Kinetic energy | energy associated with its motion |
| Exothermic reaction | describes a process that releases heat energy |
| Endothermic reaction | A chemical reactuon that absorbs energy from the surroundings |
| Electrical energy | energy associated with the flow of electrical charge |
| Celsius | Water freezes at 0 degree CelciusRoom Temp at 22water boils at 100 |
| Fahrenheit | water freezes at 32Room temp at 72water boils at 212 |
| Potential energy | energy associated with it position |
| Chemical Energy | energy associated with potential chemical changes |
| K= | celsius + 273 |
| Celsius= | (Fahrenheit-32)/1.8 |
Created by:
harperbea
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