Homework Answers Page 10619

• What is the empirical formula of C2H4O2?

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  Chemistry

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• How can I find the percent compositions of Mg(NO3)2?

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  Chemistry

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• Calculate the %Br in a 1.0234g mixture of AgCl and AgBr if the mixture contains 0.6635g of Ag?

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  Chemistry

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• When iron(II) sulfate dissolves in water, does iron(II) form a complex ion with water surrounding it?

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  Chemistry

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• When is Lac operon turned on and When is it turned off?

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  Biology

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• How do you find the related acute angle?

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  Geometry

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• Do plant cells contain mitochondria?

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  Biology

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• Which of these is not an example of an isotonic muscle contraction: tying your shoe, lifting a glass of water to your mouth, pushing against a wall, or writing a letter?

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  Psychology

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• What is a constellation is and what determines when it is visible to us?

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  Science

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• The ordered pair (1.5, 6) is a solution of direct variation, how do you write the equation of direct variation? Represents inverse variation. Represents direct variation. Represents neither.?

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  Algebra

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• How does salt change the specific heat capacity of water?

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  Chemistry

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• How do you convert 849 yards to mile?

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  Algebra

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• Hybridization of carbon in ##C_2H_2##?

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  Chemistry

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• What are the two main types of chemical bonds?

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  Chemistry

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• You have 47 mL of a 0.500 M stock solution that must be diluted to 0.100 M. Assuming the volumes are additive, how much water should you add?

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  Chemistry

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• A regular polygon has interior angles of 168°. How many sides does it have?

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  Geometry

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• Why do Uranus and Neptune appear to be blue?

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  Science

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• A pail with 40 washers in it weighs 500 grams. The same pail with 20 washers in it weighs 420 grams. How much does the pail weigh?

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  Algebra

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• What channels in the presynaptic neuron open up in response to an action potential?

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  Psychology

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• How to write an equation relating distance to force? With a table and graph?

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  Physics

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• What is the difference between simple present and present tense?

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  English

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• What is the ionic bond formation of Beryllium and Oxygen?

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  Chemistry

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• If the index of refraction of water is 1.33, what is the speed of light in water?

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  Physics

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• Calculate the density of nitrogen gas, in grams per liter, at STP?

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  Chemistry

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• Is alcohol classified as a Stimulant, Depressant, Hallucinogen or Narcotic?

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  Psychology

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• What is the empirical formula for nitroglycerin?

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  Chemistry

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• How do you graph ##x=4## by plotting points?

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  Algebra

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• How many autosomes do human cells contain?

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  Biology

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• Who discovered planet Mercury?

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  Science

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• What was Nixon's "Southern strategy"?

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  History

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• What are coefficients?

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  Precalculus

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• How does atomic size vary in the periodic table?

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  Chemistry

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• cobalt (II) sulfate reacts with lead (II) nitrate farming cobalt (II) nitrate and lead (II) sulfate

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  Chemistry

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• What is the net ionic equation of the reaction of MgSO4 with Pb(NO3)2?

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  Chemistry

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• How is the earth's rotation different from Venus'?

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  Science

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• How do you find carrying capacity on a graph?

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  Biology

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• What is the Wilmot Proviso?

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  History

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• What kind of boundary is formed when two lithospheric plates slide past each other?

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  Science

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• How do nuclear reactions change the identity of an atom?

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  Physics

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• What is a prime number between 70 and 80?

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  Algebra

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• How do wavelengths define light?

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  Science

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• What was expected of the colonists through the new Quartering Act passed in 1774 as part of the Coercive Acts (Intolerable Acts)?

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  History

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• What is the chemical equation for the reaction of potassium oxide with sulphuric acid?

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  Chemistry

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• What is the average of 10, 18, and 23?

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  Statistics

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• How do innate and environmental factors interact?

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  Psychology

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• How do you convert 7.5 x 10^4 j into kilojoules?

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  Algebra

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• What is an operon, and how does it regulate gene expression?

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  Biology

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• What is assonance?

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  English

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• For the circle ##(x-1)^2 + (y+1)^2 = 20## in the ##xy##-plane, what is the coordinates of the center, the radius, and the area?

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  Precalculus

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• What element has the symbol Ag?

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  Chemistry

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