Homework Answers Page 10519

• Why does hair turn gray?

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  Psychology

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• Use standard enthalpies of formation to calculate ΔH∘rxn for the following reaction:? CaO(s)+CO2(g)→CaCO3(s)

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  Chemistry

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• How do you prove that tangent is an odd function?

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  Geometry

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• What does a paradox mean in literature?

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  English

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• Why is enthalpy a state function?

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  Chemistry

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• What are the factors of 50?

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  Algebra

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• Which of the following compounds will undergo an Sn2 reaction most readily: ## (CH_3)_3C CH_2I## or ##(CH_3)_2CHI##?

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  Chemistry

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• What is hyperbole?

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  English

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• Is human body made of cells or atoms or molecules?

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  Psychology

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• How do cam plants avoid photorespiration?

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  Biology

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• How do you convert 989.27 MPA to Pa?

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  Algebra

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• What is ##y+10## when ##y=43##?

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  Algebra

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• Which has a bigger volume solid, liquid or gas?

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  Chemistry

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• How do you simplify 4 square root of 125?

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  Algebra

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• Rum is often sold by the fifth (0.200 gallon). Convert this volume into units of cubic meters

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  Chemistry

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• Does an electronic balance measure mass or weight?

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  Physics

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• How do you determine the formula for calcium chloride?

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  Chemistry

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• What is the sum of 9260 and 3240?

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  Algebra

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• How do you find the derivative of ##y= log x^2##?

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  Calculus

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• What is taxonomy of Oscillatoria?

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  Biology

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• What are the major characteristics of the surface zone of the ocean?

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  Science

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• What is a pKa table?

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  Chemistry

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• What is a meniscus? Why is it necessary to know about it when measuring liquids?

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  Chemistry

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• How do you name alkynes with two triple bonds?

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  Chemistry

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• How do you convert inches to feet?

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  Physics

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• Why does the phase diagram of water have a negative slope?

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  Chemistry

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• What is the Gaussian function?

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  Statistics

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• Is hydrogen fluoride a polar covalent molecule?

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  Chemistry

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• How do you do gas stoichiometry problems at STP?

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  Chemistry

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• What are the key differences between the ontological, teleological, and cosmological arguments?

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  Science

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• What does it mean to say that the gravity of the Earth is 9.8 m/s2?

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  Science

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• What are hypertonic solutions?

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  Biology

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• Why is fluorine a gas, bromine a liquid, and iodine a solid, at room temperature?

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  Chemistry

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• Ashok wanted his house white washed. He bought 10kg quick lime from market and dissolved it in 30 liters of water. On adding lime to water he noticed that bubbles were produced and the solution becomes hot. What was the product formed and why?

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  Chemistry

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• What is the definition of electronegativity?

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  Chemistry

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• How do you define the octet rule?

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  Chemistry

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• How does specific heat of water compare to other substances?

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  Physics

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• How do you convert percentages to masses? Cheers _xD83D__xDE0A_

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  Chemistry

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• What functional groups are present in acetaminophen?

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  Chemistry

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• What was Andrija Mohorovicic's major contribution to geology?

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  Science

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• What is the ecliptic, and why is it tilted with respect to the celestial equator?

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  Science

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• Why did Louis XIV change the capital of France from Paris to Versailles?

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  History

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• What is the electron configuration for an oxygen atom in an excited state? thank you :)

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  Chemistry

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• How do you find the integral of ##sin^2(3x)dx##?

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  Calculus

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• The normal boiling point of water is 100.0 °C and its molar enthalpy of vaporization is 40.67 kJ/mol. What is the change in entropy in the system in J/K when 39.3 grams of steam at 1 atm condenses to a liquid at the normal boiling point?

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  Chemistry

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• Why is there only 3 constitutional isomers of pentane (C5H12)?

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  Chemistry

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• What is a complementary angle?

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  Geometry

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• How does hydrogen bonding contribute to water's high specific heat?

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  Chemistry

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• Hi, Why do some textbooks say that Avogadro's number is 602 sextillion ? I wrote out the full number and wrote the number above each set of zero's and it is 602 hexillion.

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  Chemistry

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• What is the difference between an ether and an ester?

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  Chemistry

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