Homework Answers Page 10780

• Calculate the mass ratio of zinc to iodine in zinc iodide .( mass of zinc consumed is 1.05g and mass of iodine consumed is 1.98g)Mass of ZnI2 after reaction is 2.45g ?????

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  Chemistry

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• What is a formula unit?

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  Chemistry

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• What percent of the earth's surface is covered by water?

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  Science

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• How are carrying capacity and limiting factors related?

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  Biology

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• What were the three periods that divided the Mesozoic era?

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  Science

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• A guy wire supports a tower. The wire forms an angle of 57 degrees with level ground. The wire is anchored to the ground 16.5m away from the base of the tower. How long is the guy wire?

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  Geometry

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• What was the goal of the American Colonization Society (ACS)?

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  History

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• What is reverse blood flow in heart chambers?

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  Psychology

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• What is the empirical formula of calcium sulfate?

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  Chemistry

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• How does the endosymbiotic theory explain the origin of eukaryotes?

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  Biology

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• How do you write the expression for "Twice the difference of a number Z and 12 is equal to 10"?

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  Algebra

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• What are the dimensions of a soccer field if the perimeter is 300 years and the length is 50 yards longer than the width?

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  Algebra

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• Find the equation of the parabola that has vertex,(-2,4),axis of parabola is parallel to the x-axis and passing through the point (3,8)?

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  Algebra

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• What is the difference between a constant and a coefficient?

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  Algebra

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• What is a fraction sequence?

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  Precalculus

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• What are decomposers?

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  Biology

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• What does a negative heat capacity mean?

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  Chemistry

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• If now is june then what month will it be 100 months from now? a) April b) October c) june

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  Algebra

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• The density of liquid mercury is 13.6g/ml. What is it's density in units of lb/in³ ?

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  Chemistry

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• What are some points of difference between active and passive transport? Also, what is the difference between diffusion and osmosis?

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  Biology

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• How do you evaluate ##arccos(cos(5pi/4))##?

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  Geometry

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• The perimeter of a football field rink is 346 yards. If the length is 14 yards more than 2 times the width, what are the dimensions?

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  Geometry

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• How many bonding orbitals are in Silicon Tetraflouride, or ##SiF_4##?

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  Chemistry

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• What are the particles on the surface of the cristae in mitochondira called? How do they work?

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  Biology

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• What is an example of an exposition?

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  English

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• How does the law of independent assortment increase variation?

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  Biology

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• What is the difference between liver cancer and cirrhosis of the liver?

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  Psychology

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• How do you name alkanes from Newman projections?

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  Chemistry

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• What is the difference between a subject complement and a predicate? They both come after the verb in a sentence, so what's the difference?

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  English

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• A sphere has a volume of ##288pi##. What is the radius?

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  Geometry

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• Where is DNA located?

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  Biology

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• What are enlarged montgomery glands? What do they look like?

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  Psychology

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• What's an ion?

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  Algebra

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• How do you find pH if given osmotic pressure and temperature?

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  Chemistry

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• What is the second derivative of inverse tangent?

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  Calculus

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• How do polyatomic ions bond?

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  Chemistry

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• What is the difference in function between acetylcholine and acetylcholinesterase?

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  Psychology

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• Atmospheric oxygen is denoted by what symbol?

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  Science

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• What is the square root of 42?

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  Algebra

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• What is an adjective for the word "modern"?

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  English

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• Why was the 3/5 Compromise important?

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  History

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• A recipe calls for 1.2 cups of oil. How many liters of oil is this?

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  Algebra

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• Can you explain the deviation of real gases using Van der Waals equation?

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  Chemistry

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• What are some examples of convex mirrors?

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  Physics

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• How do you evaluate ##sin^2(pi/2)##?

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  Geometry

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• Is this equation right HCl + NaOH ---> H2O + NaCl or NaOH+HCl--> NaCl + H2O & what the difference ?

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  Chemistry

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• What is a physical change?

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  Chemistry

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• What is hemoglobin, and does it help with blood clotting?

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  Psychology

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• Find the horizontal and vertical asymptotes of the curve? y = 2e^x/e^x − 7 (smaller y-value)= larger y-value)= x=

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  Calculus

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• What are the advantages of using a stratified random sample?

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  Statistics

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