Homework Answers Page 10498

• How do we represent the magnitude of a vector in physics?

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  Physics

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• Why is a 90% confidence interval narrower than a 95% confidence interval?

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  Statistics

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• 300 mL of 0.50 M HClO + 400 mL of 0.50m NaClO. How do I setup an ICE table for this? What is its net ionic reaction?

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  Chemistry

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• How do you convert 3.2 tons to pounds?

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  Algebra

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• How many composite numbers are between 1 and 50?

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  Algebra

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• Silicon tetrachloride (##SiCl_4##) can be prepared by heating ##Si## in chlorine gas: ##Si (s) + 2Cl_2(g) -> SiCl_4(l)##. In one reaction, 0.507 mole of ##SiCl_4## is produced. How many moles of molecular chlorine were used in the reaction?

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• How is naming a polyatomic ion different from naming a binary compound?

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  Chemistry

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• What does "establish credibility" mean in a research paper?

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  English

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• How much is 23-kg in pounds?

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  Chemistry

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• What is the difference between future perfect continuous and future perfect tense?

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  English

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• What is 1 divided by 0?

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  Algebra

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• Chlorine consist of two isotopes one is cl-35 which has the mass of 34.97 and natural abundance of 75.77% the second is cl -37 the mass of 36.96 and natural abundance of 24.2% calculate the average mass of chlorine?

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  Chemistry

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• Can average rate of change be negative?

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  Precalculus

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• Using the reaction 2Na(s)+Cl2---> 2NaCl(s), determine the mass of NaCl that is produced when a mixture of 12.8g Na and 10.2g Cl2 reacts? Determine the limiting reactant first

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  Chemistry

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• What is smog and how can it negatively affect human life?

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  Science

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• What is amphetamine delusional disorder?

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  Psychology

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• What is an example of a heterogeneous mixture?

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  Chemistry

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• Two complementary angles are in the ratio of 4:5. What is the measure of the smaller angle?

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  Geometry

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• What is Hund's Rule?

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  Chemistry

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• How do you verify ##sinx/(1-cosx) + (1-cosx)/sinx = 2cscx##?

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  Geometry

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• Is there a difference between a characterization and a character sketch?

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  English

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• How do you conjugate saber in the present tense? (Spanish)

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  English

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• How do you simplify square root of 128 + the square root of 32?

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  Algebra

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• Does a hepatic function panel lab test detect hepatitis C?

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  Psychology

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• 3/4 lbs is equal to how many ounces?

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  Algebra

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• What is carbon fixation, and how does it relate to photosynthesis?

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  Biology

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• How do you find the area of a isosceles triangle with base 10 and perimeter 36?

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  Geometry

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• What is the extreme value of a quadratic function?

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  Calculus

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• The radius of a circle is 6.5. What is the diameter, circumference, and area?

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  Geometry

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• How does the base pairing rule affect DNA replication?

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  Biology

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• The systematic (IUPAC) name for the amino acid threonine is (2S,3R)-2-amino-3-hydroxybutanoic acid. The systematic name indicates that threonine has two stereocenters, at positions 2 and 3, with S and R configurations, respectively. What is ths the Fischer...

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  Chemistry

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• What are six types of neuroglial cells?

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  Psychology

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• How do you convert 28.0 centimeters to meters with the correct number of significant figures? And how do you convert 1000 meters to kilometers with the correct number of significant figures?

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  Chemistry

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• How many chromosomes are in the daughter cells produced from mitosis?

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  Biology

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• What is the valency of alkaline earth metal?

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  Chemistry

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• Can an invertible matrix have an eigenvalue equal to 0?

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  Algebra

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• How to draw lewis structure NH3?

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  Chemistry

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• What are the names of three layers of the heart wall?

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  Psychology

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• An aqueous solution of lead II phosphate is added to an aqueous solution of potassium iodide. When the two colorless solutions mix, a bright yellow precipitate forms in a double replacement reaction. What is the balanced chemical equation?

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  Chemistry

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• ##CaCO3 + 2HCl -> CaCl2 + H2O + CO2## If it takes 0.0456 mol ##HCl## to completely react with all the ##CaCO3## in a 2.50g eggshell sample, a.) What is the mass of ##CaCO3## in the eggshell sample? b.) % ##CaCO3## in the eggshell sample?

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  Chemistry

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• Why is the periodic table organized by atomic number rather than alphabetically?

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  Chemistry

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• What is the antiderivative of ##(sin(x))^2##?

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  Calculus

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• What is the principal quantum number for the outermost electrons in a Ca atom in the ground state?

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  Chemistry

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• What is the simplest formula for chromium (II) and selenide?

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  Chemistry

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• How do you divide ##(3x ^ { 2} + 7x + 4) \div ( x + 1)##?

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  Precalculus

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• What is the perimeter of a square with sides of 5 cm, in meters?

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  Geometry

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• By signing Executive Order 9981 how did Truman change the U.S. military after World War II?

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  History

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• What volume of 0.255 M K2S solution is required to completely react with 170 mL of 0.110 M Co(NO3)2?

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  Chemistry

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• What is 0.17 in fraction form, simplified?

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  Algebra

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• How do you find the z-score for which 95% of the distribution's area lies between -z and z?

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  Statistics

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