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Chpt: 3
Chapter 3: Matter and Energy
Question | Answer |
---|---|
Matter | anything that occupies space and has mass |
Crystalline | arrange in geometric patterns with repeating order |
Amorphous | atoms and molecules do not have an order |
mixture | composed of two or more different types of atoms or molecules combined in variable proportions |
Physical Change | matter changes its appearance but not its composition |
Chemical Change | matter does change its composition |
Decanting | carefully pouring off top |
distillation | Process in which the mixture is heated to boil off the more volatile |
filtration | Mixture composed of a solid and a liquid separated....Mixture poured through filter paper |
1 cal | 4.184 Joules |
1 kilowatt | 3.60 x 10^6 joules |
kalvin | K = C + 273.15 |
celcius | C = (F-32) / 1.8 |
Heat capacity | the quantity of heat required to change the temperature of a amount of the substance by 1 C |
Specific heat capacity | has units of joules per gram per degree C |
Heat | Mass x Specific heat capacity x Temperature Change |