Homework Answers Page 10475

• If I have a chart that claims that the Atomic radius of Rubidium is 248 picometers cubed, how can I calculate how many Rubidium atoms span the length of 1.00 centimeter (Assume that the Rubidium atoms are touching each other) ?

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  Chemistry

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• Which southern state refused to ratify the Twenty-fourth Amendment?

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  History

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• How can you find the ionic charges of elements by looking at the periodic table?

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  Chemistry

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• What is a 100 sided polygon called?

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  Geometry

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• What is one proof of the converse of the Isosceles Triangle Theorem?

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  Geometry

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• The sum of two consecutive integers is 47, how do you find the two numbers?

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  Algebra

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• What is the sphincter of Oddi? What is the ileocecal sphincter?

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  Psychology

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• Consider butter (density=0.860g/ml) and sand (density=2.28g/ml). If 1.00ml of butter were mixed with 1.00ml of sand and mixed as thoroughly as possible, what would be the density of the resulting mixture?

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  Chemistry

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• How do you rationalize the denominator of ##1/(sqrt(2)+sqrt(3)+sqrt(5))##?

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  Algebra

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• What is ground tissue?

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  Biology

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• What percent composition of glucose is carbon?

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  Chemistry

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• How did Robert Millikan's oil drop experiment change scientists' view of the atom?

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  Chemistry

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• What is the formula for molar heat of solution?

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  Chemistry

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• How do you tell the difference between a hydroxyl group and an alcohol group?

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  Chemistry

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• Write a balanced equation for the precipitation reaction that occurs when aqueous solutions of iron(III) bromide and potassium phosphate are combined?

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  Chemistry

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• What is the vertex and direction of this parabola ##y=-3(x+2)^2+3##?

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  Algebra

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• What is the function of ependymal cells?

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  Psychology

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• How does the sun affect the phases of the moon?

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  Science

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• What is the purpose of double blind experiments?

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  Statistics

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• How is gene expression related to the central dogma of molecular biology?

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  Biology

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• What trophic level is occupied by carnivores?

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  Environmental Science

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• What were the international consequences of World War II for the Allied Powers and Axis Powers?

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  History

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• Why does crystallization separate mixtures?

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  Chemistry

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• What was wrong with Rutherford's model of the atom?

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  Physics

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• What are the three states of matter?

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  Chemistry

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• How do you solve quadratic equations to the fourth power?

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  Algebra

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• Convert 17 miles to kilometers if 1 inch = 2.54 cm ?

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  Chemistry

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• What are the different types of irony?

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  English

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• What role did the 13 colonies have in the British empire?

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  History

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• What is a myogenic heart? How is this different from a neurogenic heart?

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  Psychology

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• What is antimatter and dark energy ?

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  Science

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• How do you write the algebraic expression: the quotient of 15 and y?

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  Algebra

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• How does acceleration affect tension?

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  Physics

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• Did the United States win or lose the Vietnam War?

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  History

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• What is the mass of hydrogen in 49.2 g ammonium hydrogen phosphite?

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  Chemistry

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• ##"Z"^-## is a weak base. An aqueous solution prepared by dissolving 0.350 mol of ##"NaZ"## in sufficient water to yield 1.0 L of solution has a pH of 8.93 at 25.0 °C. What is the ##K_"b"## of ##"Z"^-##?

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  Chemistry

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• Why are alkenes and alkynes called unsaturated compounds?

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  Chemistry

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• What is the end behavior of the square root function?

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  Precalculus

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• What is the conjugate acid-base relationship of (H2PO4)- and (HPO4)-?

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  Chemistry

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• Why is ammonia hydrophilic?

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  Chemistry

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• A solution is prepared by adding 2 grams of substance a to 18 grams of water. How do you calculate the mass percent of the solute?

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  Chemistry

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• How are hydrogen bonds different from covalent and ionic bonds?

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  Chemistry

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• Which of the following synonyms for home has the most positive connotations: castle, abode, hovel, dwelling?

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  English

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• Light from the sun reaches Earth in 8.3 min. The velocity of light is 3.00 108 m/s. Given this info, how would you determine how far the Earth is from the sun?

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  Science

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• I am the head of the carbon family known as the "basis of life##? What am I?

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  Chemistry

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• Lewis dot structure and vesper shape for Hydronium?

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  Chemistry

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• What is -25 fahrenheit in celsius?

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  Algebra

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• The base of a triangular pyramid is a triangle with corners at ##(2 ,5 )##, ##(6 ,5 )##, and ##(7 ,8 )##. If the pyramid has a height of ##15 ##, what is the pyramid's volume?

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  Geometry

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• The vapor pressure of water at 20 C is 17.5mmHg. What is the vapor pressure of water over a solution prepared from 200g of sucrose (##C_12H_22O_11##) and 112.3 g of water?

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  Chemistry

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• How to find extrapolated temperature?

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  Chemistry

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