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Measurement

INT SCI physics review/basic unit study guide

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Science Study Guide Metric Prefixes: Deka da ten Deci d tenth Hecto h hundred Centi c hundredth Kilo k thousand Milli m thousandth Mega M million Micro ? millionth Giga G billion Nano n billionth Tera T trillion Pico p trillionth Difference between theory and hypothesis: A scientific theory is a hypothesis that has been tested and proven Scientific method: a method used in gaining, organizing, and applying new knowledge Recognize a problem Make an educated guess (hypothesis) about the answer Predict the consequences of the hypothesis Perform experiments to test it Make conclusions Experimental Components: Independent variable: part of the experiment that is purposely manipulated

Bent Shape of Molecules in Covalent Bonds

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Food and drink
Customary units in the United States
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Ham
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Molecular Shape
Covalent Bonding
molecules
molecular geometry

Croque Monsieur 2004, Barefoot in Paris, All Rights Reserved Prep Time: 5 min Cook Time: 25 min Serves: 4 to 8 servings Ingredients 2 tablespoons unsalted butter 3 tablespoons all-purpose flour 2 cups hot milk 1 teaspoon kosher salt 1/2 teaspoon freshly ground black pepper Pinch nutmeg 12 ounces Gruyere cheese, grated (5 cups) 1/2 cup freshly grated Parmesan 16 slices white sandwich bread Dijon mustard 8 ounces baked Virginia ham, sliced Directions Preheat the oven to 400 degrees F.

Metric System

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Metric System
Joules
Kelvins

Conversions Regarding the Metric System and some Associated Formulas By Toomuchswag Sources: My Chemistry Notes and http://www.simetric.co.uk/siprefix.htm for some verification Most of the world besides the United States uses the metric system, a much simpler measuring tool according to many. The Metric system works in powers of ten: The prefixes work like this: Kilo Hecto Deca R (this is the regular unit, be it meters, grams, etc. we have given it the letter R) Deci Centi Milli Some important formulas: Density: Mass/Volume 1calorie or cal is the amount of energy required to raise the temperature of water by 1 degree Celsius

light mechanical model

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the amplitude of a wave is the wave's height from zero to the crest. the wavelength is the distance between the crests. the frequency is the number of wave cycles to pass a given point per unit of time. the SI unit of cycles per second is called hertz (Hz). the wavelength snf frequency of light are inversely proportionate to each other. the product of the frequency and wavength is always a constant (c), the speed of light.

Stoichiometry Notes

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Stoichiometry

Stoichiometry mass and amount relationships between reactants and products in a chemical reaction Rules for Solving Stoichiometry Problems A balanced, properly written equation is essential because the coefficients tell you the mole to mole ratio. Converting to moles is essential! Example: When CaC2 reacts with water, acetylene gas (C2H2) and calcium hydroxide are produced. How many grams of water are required to produce 1.55 moles of C2H2? Step 1: Write a balanced equation. CaC2 + 2H2O ? C2H2 + Ca(OH)2 Step 2: Determine what info you have and what you are trying to determine. You know you need to produce 1.55 moles of C2H2, and you need to determine how many grams of water are required to do this.

Gas Laws Notes

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Pressure
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Graham's Law of Effusion

Gas Laws Properties of Gases Fluids Low density Highly compressible Completely fill a container and exert pressure in all directions Pressure the force exerted per unit of area Units of pressure: kilopascal (kPa) atmosphere (atm) torr (torr) millimeters of mercury (mmHg) pounds per square inch (psi) 1 atm = 760 mm Hg = 760 torr = 101 kPa Pressure and Volume How are pressure and volume of a gas related? Think about the demos yesterday. What are the words we use for this relationship? What would a graph look like? Pressure and Volume Boyle?s Law: the volume of a certain mass of gas at constant temperature is inversely proportional to the pressure applied to the gas P1V1 = P2V2 P V

Algebra 2 Unit Circle Hints

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the unit circle every 30 degree mark is just a faction counted by 1/6 in radians every 45 degree mark is just a fraction counted by 1/4 in radians the drgrees start at one then add 30, add 15, add 15, add 30, add 15, add 15, and so on the negatives are equivalent to the positives except opposite of them

mols

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The mole is a unit of measurement for the amount of substance or chemical amount. It is one of the base units in the International System of Units, and has the unit symbol mol.[1] The name mole is an 1897 translation[2][3] of the German unit Mol, coined by the chemist Wilhelm Ostwald in 1893,[4] although the related concept of equivalent mass had been in use at least a century earlier. The name is derived[5] from the German word Molekül (molecule).

easy way to remember conversion chart

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good way to remember the conversions... GxxMxxKHD bu dcmxxuxxnxxp gee x x maybe x x kangaroos have dandrufft but you dont care much x x u x x need x x pantene giga, place holder, place holder, mega, place hold, place hold, kilo hepta deca base unit deci centi milli, place hold, place hold, micro, place hold, place hold, nano, place hold, place hold, pico

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