Homework Answers Page 10519

• How do hydrogen bonds hold DNA together?

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  Chemistry

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• How long did it take astronauts to reach the moon?

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  Science

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• If y=6 for every value of x, can y be regarded as a function of x ? and why ?

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  Algebra

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• How do you balance H3PO4 +Mg(OH)-->Mg3(PO4)2 +H20?

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  Chemistry

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• What is a wedge?

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  Physics

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• How do you calculate molar volume of nitrogen gas?

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  Chemistry

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• How do you write ##400## in exponential notation?

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  Algebra

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• How do you find a double angle formula for sec(2x) in terms of only csc(x) and sec(x)?

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  Geometry

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• Topics for working model of biology?

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  Biology

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• What contributions did Hershey and Chase make to the understanding of DNA?

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  Biology

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• Is capacitance inversely proportional to distance?

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  Physics

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• What is the empirical rule and how does it differ from Chebyshev's inequality?

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  Statistics

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• Does a precipitate of: (a) AgCl (Ksp= 1.6 x 10-10) form when 200 mL of 1.0 x 10-4 M AgNO3(aq) and 900 mL of 1.0 x 10-6 M KCl(aq) are mixed? (b) CaSO4 (Ksp = 2.4 x 10-5) form when 1.0 mL of 1.0M K2SO4(aq), 10.0 mL of 0.0030M CaCl2(aq) , and 100 mL of H2O?

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  Chemistry

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• How do you use the sum and difference formula to simplify ##cot ((113 pi)/ 12)##?

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  Geometry

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• What is the noble gas configuration for carbon?

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  Chemistry

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• Some elements have "m" isotopes with the same mass number. What does the "m" mean?

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  Chemistry

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• Who invented algebra?

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  Algebra

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• What is the union of sperm and egg to form a zygote?

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  Psychology

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• What is a multiple of 2 and 7?

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  Algebra

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• How is a single covalent bond formed?

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  Chemistry

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• How do you simplify ##(1-cos^2x)/sinx##?

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  Geometry

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• What is the electron configuration for Sodium?

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  Chemistry

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• What is the earth made of in percentages?

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  Science

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• Why is acceleration inversely proportional to mass?

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  Physics

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• What is an electron configuration of a nitrogen molecule?

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  Chemistry

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• How would you define a bond?

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  Chemistry

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• What is a proper adjective?

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  English

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• How do you calculate ionization energy using Rydberg constant?

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  Chemistry

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• When during the cell cycle do chromosomes first become visible?

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  Biology

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• Can the average fixed cost ever be zero?

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  Economics

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• How do you find the square root 289?

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  Algebra

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• How do quasars differ from stars?

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• How does natural selection drive evolution?

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  Biology

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• What is the square root of 20 times the square root of 5?

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  Algebra

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• What is static equilibrium in chemistry?

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  Chemistry

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• How do you simplify Square root of 24 + Square root of 54?

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  Algebra

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• What is the algebraic expression for N cubed increased by 5?

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  Algebra

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• What is the role of calcium ion in blood clotting?

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  Psychology

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• What are the steps to the Boyle's Law formula "P1 x V1 = P2 x V2"?

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• What is the difference between species diversity and species richness?

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  Environmental Science

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• What does redundant mean? Can a person be redundant?

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  English

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• How big is the moon compared to the Earth?

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  Science

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• What is the ionic compound for FePO4?

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  Chemistry

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• What is the function of the pituitary gland?

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  Psychology

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• There are 1000 grams in a kilogram. How many grams is 2.25 kilograms?

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  Algebra

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• What is the Bernoulli's principle?

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  Physics

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• What is covalent bonding?

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  Chemistry

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• CaH2+H2O->Ca(OH)2+H2 unbalanced If 21 g of CaH2 is consumed in the reaction B.How many grams of Ca(OH)2 are formed? C.How many liters of H2 gas are produced at STP?

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  Chemistry

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• The functions f and g are defined for all x€R \{ -1,0,1} by f(x) = (x+1)/(1-x) and g(x)=1/x . Show that (f○g)^-1 (x)= (f○g)(x). How to do this ?

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  Calculus

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• 1.What is x if the mean of the numbers 4,5,x,8,9 and 3 is 6? 2.what is the median if the mean of 10,8,7,12,x,6,10 and 4 is 8?

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  Statistics

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