Homework Answers Page 10623

• Can two acute angles be vertical, adjacent, complementary, or supplementary?

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  Geometry

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• What is a placebo?

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  Psychology

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• What vsepr shapes are polar?

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  Chemistry

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• Which one gives an acidic pH in aqueous solution ? 1- NaCl 2-NaHCO3 3-Ca3(PO4)2 4-Nh4Cl 5-CH3COOK

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  Chemistry

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• How was the parsec derived?

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  Science

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• What is CRISPR gene?

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  Biology

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• How does the egg cell and the sperm cell fuse together to form a zygote?

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  Biology

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• How do you rationalize the denominator and simplify ##sqrt35 /sqrt55##?

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  Algebra

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• How do you calculate buffer pH for polyprotic acids?

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  Chemistry

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• How do you simplify ##4 sqrt (625)##?

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  Algebra

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• What were traditional views that led people to disapprove of a woman's right to vote?

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  History

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• Why is acceleration measured in meters / seconds squared?

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  Physics

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• How do you prove ##cosh(2x) = cosh²x + sinh²x##?

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  Geometry

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• I don't understand the concept of hydrates; A 2.78g sample of hydrated FeSO4 was heated to remove all the water of the hydration. The mass of the anhydrous FeSO4 was 1.52g. Calculate the number of water molecules associated with each unit of FeSO4?

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  Chemistry

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• What is the relationship between the second law of thermodynamics and entropy?

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  Physics

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• What is the maximum number of pi bonds that can exist in a given pair of atoms?

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  Chemistry

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• Does ##54/8## have an equivalent fraction with a denominator or ##9##? If so, what is it?

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  Algebra

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• How do you find the rate of change of y with respect to x?

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  Calculus

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• What is the empirical formula for the compound P4O6?

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  Chemistry

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• 39 is 5% of what number?

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  Algebra

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• What year was Abraham Lincoln elected president?

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  History

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• Determine the pH of a .22-M ##NaF## solution at ##25^@"C"##? The ##K_a## of ##HF## is ##3.5xx10^(-5)##

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  Chemistry

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• How do you write 1/6 as a decimal?

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  Algebra

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• Why do people say English is the hardest language to learn?

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  English

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• What is the square root of 125/5?

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  Algebra

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• Kinked-demand curve model justify the ''stickiness'' of prices in oligopolistic marekt ? Explain and examine.

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  Economics

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• Are the electrons in a coordinate covalent bond donated by both the bonded atoms?

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  Chemistry

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• Why does secondary succession occur faster than primary succession?

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  Biology

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• What are the units for k in first, second, and third order reactions?

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  Chemistry

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• Why does ice float on water?

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  Chemistry

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• Why does ##|x| < 0## have no solution?

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  Algebra

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• What is 3.5 as a fraction?

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  Algebra

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• What are the accessory sexual organs of the male reproductive system?

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  Psychology

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• What are complex carbohydrates also known as?

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  Biology

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• Who started the protests that led to the May Fourth Movement?

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  History

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• What is the solution set of the equation ##x/5 + x/2 =14##?

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  Algebra

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• How do you do square root of 98 divided by square root of 18?

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  Algebra

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• What is the structure of L(+) Glucose and L(-) Glucose? What does +, -, and L tell you?

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  Chemistry

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• Given ##H = x^2 + 8##, what is ##H^-1##?

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  Precalculus

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• How do you graph ##x-y=7## by plotting points?

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  Algebra

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• How do you solve the system of equations ##x+y=8##, ##x-y=4## by graphing?

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  Algebra

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• What is the distance of pluto to earth in AU?

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  Science

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• What is the gram formula mass of ##KMnO_4##?

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  Chemistry

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• What levels of organization include abiotic factors?

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  Biology

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• What are the conjugate bases of the acids HF and HClO ?

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  Chemistry

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• The equatorial circumference of Earth is about ##4*10^4## kilometers. The equatorial circumference of Jupiter is about ##439,263.8## kilometers. About how many times greater is Jupiter‘s circumference than Earth’s?

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  Algebra

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• How many protons, neutrons, and electrons are in a neutral atom of sodium?

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  Chemistry

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• Which president started the Bull Moose Party?

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  History

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• How does heat energy affect the movement of water molecules?

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  Physics

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• What is the medical term for a heart attack?

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  Psychology

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