Homework Answers Page 10526

• How do I use DeMoivre's theorem to solve ##z^3-1=0##?

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  Precalculus

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• What is free fall and how does it relate to gravity?

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  Physics

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• What are the general characteristics of members of the class aves?

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  Biology

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• Is this a Buffer? 25 ml of 0.60 M HClO4 + 45 ml 0.60 M KF. Please show how you determined its a buffer and mention the concentration of weak base and weak acid. PH= Pka + log(weak base/weak acid). (buffer equation)

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  Chemistry

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• What is the opposite and reciprocal of 3/5?

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  Algebra

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• What was Democritus's atomic theory?

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  Chemistry

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• How do you define atomic number?

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  Chemistry

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• What plant cell organelle has a double membrane surrounding it?

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  Biology

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• What is the balanced equation for the neutralization of hydrobromic acid with calcium carbonate?

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  Chemistry

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• Where are the chlorophyll found in prokaryotic cell?

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  Biology

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• What were the goals of the American Federation of Labor when it was founded?

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  History

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• What is the biggest difference between the upper and lower mantle?

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  Science

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• How do you solve rational equations ##[(x+2) / (x-1)] = [1/2]##?

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  Algebra

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• How would you find the molar enthalpy of vaporization for a substance, given 3.21 mol of the substance absorbs 28.4 kJ of energy as heat when the substance changes from a liquid to a gas?

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  Chemistry

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• Who was president during the Iran-Contra scandal?

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  History

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• How do you balance this equation H2SO4+NH4OH--->(NH4)2SO4+H2O?

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  Chemistry

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• What are good adjectives that start with the letter "J"?

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  English

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• What is metallic bonding, how does it work, and is it strong or weak and why?

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  Chemistry

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• How do you find the circumference of a circle with diameter 7.2cm?

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  Algebra

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• How many obtuse angles in a regular pentagon?

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  Geometry

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• Alexander the Great's empire extended to which river in the East?

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  History

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• Are Glycosidic bonds, Peptide Bonds and Ester Bonds condensation bonds?

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  Biology

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• What is the molar mass of glucose (C6H12O6)???

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  Chemistry

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• What element in the fourth period of the periodic table has 5 valence electrons?

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  Chemistry

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• How do you find volume when given mass?

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  Chemistry

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• Derive the formula for centripetal acceleration?

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  Physics

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• A cone has a slant height of 34 cm and the radius is 16 cm. What is the exact volume of the cone?

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  Geometry

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• What is a quadrilateral that is not a parallelogram and not a trapezoid?

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  Geometry

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• Why are valence electrons important in chemical bonding?

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  Chemistry

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• How are sedimentary rocks formed and what are some examples?

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  Science

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• What are viruses?

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  Biology

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• What is the oxidation number of ##C_2O_4^(2-)##?

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  Chemistry

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• What is structural unemployment?

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  Economics

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• Are changes in state "physical" or "chemical" changes for molecular solids, and why?

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  Chemistry

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• What is a famous example of anadiplosis?

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  English

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• What is an antonym for the word "dictator"?

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  English

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• What does NASA mean when they say an image is false color?

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  Science

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• What is the difference between a hypotonic, Hypertonic and isotonic solution??

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  Biology

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• Which contains a higher number of chloroplast, a young leaf or a mature leaf?

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  Biology

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• Is the Avogadro constant used in the Avogadro's law formula?

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  Chemistry

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• What functional groups are there in caffeine?

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  Chemistry

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• What is the importance of descriptive statistics?

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  Statistics

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• N2O4(g) ⇌ 2 NO2(g). For the reaction, Kc = 0.513 at 500 K. If a reaction vessel initially contains an N2O4 concentration of 0.0500 M at 500 K, what are the equilibrium concentrations of N2O4 and NO2 at 500 K?

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  Chemistry

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• Which is correct? "Had arose" or "Had arisen"?

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  English

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• What is the difference between hemoglobin and oxyhemoglobin?

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  Biology

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• What is the definition of a pioneer species, and what are some examples?

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  Environmental Science

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• Is 2-methylpentane an alkane, alkene, or an alcohol?

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  Chemistry

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• How do you graph the equation by plotting points y+2=0?

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  Algebra

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• Why is dissolving potassium nitrate in water an endothermic process?

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  Chemistry

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• There are 365 days in a year. How do you find the number of days in 3 years?

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  Algebra

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