Chemistry Mass and Energy I -Energy- ability to do work/give of heat -3 categories: radiant- uv, infrared, sun Potential- stored Kinetic- energy of cause -Measuring energy- SI unit of Joule (j) or Calorie -Calorimeter- thingumajig used to placard heat movements -Fossil Fuels-coal, petroleum, natural gas II- chemical reactions - law of conservation of energy- motion cant be created nor destroyed. -Reactant- left, kickoff -Product- right, end -Endothermic reaction- absorb heat (candle) -Exothermic reaction- releases heat (running) - III- Temperature- frost conduct of water is 0 c or 32 f, boiling point of water is 100c or 212 f. - SI unit- Kelvin K= c + 273, C= K - 273 Separating Mixtures I-Filtration- funnel, filter paper, ex. Water and mainstay II-Chromatography paper- separates liquids by pigments and density III-Distillation- difference in boiling points, im neat substance and heat, condenses, pure liquid, is collected in another flaskful I -Types of mixtures: 1.
Solution- adult malegeneous mixture do up of to a greater extent than on material, can be in any contour (alloy, salt water) - clear transparent 2.Solute- gets dissolved 3.Solvent- does dissolving II- Tyndall effect- strike hoy through substance and it scatters. Scatters light by the particles in the mixtures. 1. Colloid- cloudy- homo (milk) (chocolate) 2. Suspension- hetero - salad If you want to get a full essay, set it on our website:
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