Homework Answers Page 10617

• How much heat, in joules and in calories, must be removed from 1.75 mol of water to lower its temperature from 25 degree celsius to 15 degree celsius?

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  Chemistry

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• What is the equation for the line of reflection that maps the trapezoid onto itself?

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  Algebra

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• What is the contour interval and why is it important?

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  Science

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• What does "awkward syntax" mean? My English teacher wrote this on research paper. I have no idea what it means.

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  English

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• According to Avogadro's law, why dies the ideal gas constant has the same value for all gases?

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  Chemistry

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• What is latent heat of fusion?

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  Physics

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• A rectangular room is 6 meters longer than it is wide, and its perimeter is 32 meters. How do you find the dimension of the room?

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  Algebra

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• What is stellar parallax and how is it used to determine the distance to stars?

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  Science

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• How do bryophytes differ from vascular plants?

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  Biology

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• Why is knowing the number of valence electrons important in chemical bonding?

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  Chemistry

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• How do you round 315.757 to the nearest hundredth?

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  Algebra

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• What are some examples of the survival of the fittest?

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  Biology

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• What is the definition of third person point of view?

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  English

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• What are the phases of mitosis in order?

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  Biology

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• What happens during a chemical reaction?

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  Chemistry

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• How do you find the circumference of a circle with a diameter of 4.4 cm?

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  Algebra

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• If a cell has 24 chromosomes, and it undergoes mitosis to create two cells, how many chromosomes does the daughter cell have?

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  Biology

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• What is a logarithm?

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  Precalculus

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• How do you get the complex cube root of 8?

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  Precalculus

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• How amylase enzyme works?

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  Biology

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• How do you evaluate ##csc(arctan(x/sqrt2))## without a calculator?

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  Geometry

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• How many autosomes do humans have?

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  Biology

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• Which is stronger: a polar covalent bond or a nonpolar covalent bond?

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  Chemistry

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• Define radical conjugate?

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  Precalculus

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• Calculate the mass of calcium carbonate that is required to dissolve in 100cm cubed of water in order to produce a solution of concentration of 0.5mol/dm cubed?

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  Chemistry

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• What is the charge on the iron cations in iron(II) chloride and iron (III) chloride, respectively?

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  Chemistry

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• What are all the factor pairs of 32?

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  Algebra

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• Is 91 a prime number?

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  Algebra

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• Write the formula for iron (III) sulfate. What would this be?

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  Chemistry

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• Why is ##FeBr_3## a lewis acid?

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  Chemistry

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• What is hyaline cartilage?

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  Biology

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• How do you solve ##y=x-4##, ##2y=-x+10## by graphing and classify the system?

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  Algebra

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• What are optical isomers? Give me an example

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  Chemistry

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• The density of silver is 10.5 ##"g/cm"^3##, what mass of silver would occupy a volume of 24.0 ##"cm"^3##?

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  Chemistry

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• Is H2O2 -- H2O+O2 a balanced equation?

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  Chemistry

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• Why did small states oppose the Virginia Plan?

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  History

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• Which is predicted to have the shorter sulfur–oxygen bonds: a sulfite ion or a sulfate ion?

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  Chemistry

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• What are the pKas of ##HCN##, hydrocyanic acid and ##HF##, hydrofluoric acid?

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  Chemistry

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• The Henry's law constant for the solubility of ##N_2## gas in water at 298K is ##1*10^(-5)## atm. The mole fraction of ##N_2## in air is 0.8. The number of moles of ##N_2## from air dissolved in 10 moles of water at 298K and 5 atm pressure is ____ . Answer?

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  Chemistry

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• What is an apical meristem?

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  Biology

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• How many light years away is Mars from earth?

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  Science

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• How do you find the square root of 361?

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  Algebra

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• What is a voluntary response sample?

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  Statistics

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• Explain relative velocity of man with respect to rain?

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  Physics

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• Is the molecule ##SF_4## polar or non polar?

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  Chemistry

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• How far is the earth from the sun?

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  Science

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• What is the definition of a myth and a legend?

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  English

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• Draw and energy-level diagram that shows all energy levels from n=5 to n=1. Draw all possible emissions lines between these levels?

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  Chemistry

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• If a 36-inch yardstick casts a 21-foot shadow, how tall is a building whose shadow is 168 feet?

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  Geometry

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• Calculate the ##pH## of ##10^-8## ##M## ##HCl##?

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  Chemistry

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