Homework Answers Page 10791

• What is the right amount of exclamation points in a formal email? Where are they appropriate if you want to come off as friendly but professional?

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  English

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• NH4I (s) <==> NH3(g) + HI(g) A mass of 5 g of NH4I is sealed in a 2.00L flask and heated to 673K. If 2.56g NH4I(s) remain unreacted when the system has reached equilibrium, what is the equilibrium constant (Kp) for the reaction? (R = 0.0821)

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  Chemistry

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• What is the beta decay equation?

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  Chemistry

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• How do you simplify the fraction 10/20?

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  Algebra

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• What is the name of the galaxy we live in?

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  Science

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• What is a carnot engine?

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  Physics

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• What is the area of an equilateral triangle with height of 9 inches?

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  Geometry

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• What is glycerol used for?

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  Biology

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• What does "equally inclined to both axes" mean in regards to a line?

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  Algebra

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• What is the atomic mass of nitrogen?

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  Chemistry

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• How do you do you multiply a 3x2 matrix by a 2x2 matrix??

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  Algebra

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• Shannon walked ##1 2/3## miles on Wednesday and ##2 3/5## miles on Thursday. What was the total distance, in miles, Shannon walked during those 2 days?

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  Algebra

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• What is the equation for circumference?

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  Geometry

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• How many elements make up the lanthanide series?

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  Chemistry

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• Carl has a piece of toast that has jelly on one side, and he dropped it twice. Both times, it landed with the jelly side up. If he drops it two more times, what is the probability that it will have landed jelly side up a total of three times?

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  Statistics

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• How do enzymes and substrates work together?

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  Biology

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• Mars is about 1.5 times as far from the sun as the earth and its mass is about 0.1 times the earth's mass. Relative to the gravitational force the sun exerts on the earth, what is the force it exerts on Mars?

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  Science

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• Are triflate, tosylate and mesylate the only good leaving groups?

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  Chemistry

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• What is the difference between mean, median, average, and mode?

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  Statistics

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• How many cups are in a quart?

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  Algebra

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• Draw the structural formula of methanal?

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  Chemistry

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• How do you convert 2.21 x 10 ^-4 dl into microliters?

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  Chemistry

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• Why are the volcanoes on Mars bigger than those on Earth?

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  Science

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• Why are London dispersion forces weak?

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  Chemistry

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• Which fraction represents the ratio six of cups in a 5 quart in simplest form?

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  Algebra

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• What change in weather does a barometer measure?

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  Science

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• How does Newton's first law affect human motion?

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  Physics

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• What is the s,p,d,f configuration of Co?

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  Chemistry

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• The rate of effusion for ##H_2O## vs. ##H_2S## is______?

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  Chemistry

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• What is the difference between a pseudocoelom and a true coelom, and what is an example of an animal that possess each?

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  Biology

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• Why is arctan(0) = 0?

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  Geometry

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• Label the acid-base and conjugate acid-base pairs? HCO3–(aq)+ H2O(l) ---->H2CO3(aq)+ OH–(aq)

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  Chemistry

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• Why do we yawn?

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  Biology

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• Suppose the measure of an exterior of an equiangular triangle is ##(x+15)°##. What is the value of x?

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  Geometry

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• Why is the coefficient of restitution important?

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  Physics

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• For lunch Jack had a big mac and two small fries containing 1000 calories while randy had three big macs and two small fries containing 2080 calories how many calories are in big mac?

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  Algebra

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• How do you determine if ##f(x)= x^3 + 1## is an even or odd function?

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  Precalculus

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• What are the receiving chambers of the heart and what are the discharging chambers?

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  Psychology

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• How does Newton's first law affect a balloon car?

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  Physics

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• In the following reaction, what mass of calcium carbonate, CaCO3, would be required to produce 881 L of carbon dioxide, CO2, measured at STP? (I dont understand where to begin...)

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  Chemistry

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• What is the formula for lithium sulfide?

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  Chemistry

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• What is the difference between a ray of light and a beam of light?

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  Physics

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• How many pounds of nuts selling for $6 per lb and raisins for $3 per lb should a person combine to obtain 150 lb of trail mix selling for $4 per lb?

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  Algebra

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• How do you prove ##(cosx/(1+sinx))+((1+sinx)/cosx)=2secx##?

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  Geometry

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• Why are endothermic reactions useful?

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  Chemistry

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• What are nucleotides?

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  Biology

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• Is virus a living or non-living thing?

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  Biology

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• Solve: x^(-3) = 8 How do I solve for x?

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  Algebra

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• What were 3 of President Wilson’s 14 points?

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  History

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• How do you solve a gas law stoichiometry problem?

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  Chemistry

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