Answers created by TwOfSpades

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• Ap chem question?
  
• For the reaction, Ag2O(s)》2Ags(s)+1/2O2(g);♢H,♢S and T are 40.63kJ/mol,108.8J/Kmol and 373.4K respectively. Predict the feasibility of reaction???
  
• A sample of neon (Ne) occupies 1700 mL at STP. At constant pressure, what temperature is necessary to increase the volume to 2100 mL?
  
• Why don't insulators need a high specific heat?
  
• Arrange the following molecules in order of increasing average molecular speed. H2 at 371K, NO2 at 339K, Ne at 371K, H2 at 425K Enter formulas and temperatures in the boxes below: 1 = slowest, 4 = fastest 1 at K 2 at K 3 at K 4 at K ???
  
• If the perimeter of a rectangle is 18cm and the area is 20cm then what is the length and with of the rectangle?
  
• Which of the following processes requires more heat energy? Raising the temp. of 100.g of water by 10.0 degrees c or Raising the temp. of 100.g of aluminum by 10.0 degrees c? Write in complete sentences.
  
• I am unsure of a few steps. Can someone help me?:)
  
• Determine the specific heat of unknown metal from the fact that 6.40 * 10-2kj are needed to raise the temperature of 15g of unknown metal from 22 degrees Celsius to 33 degrees Celsius?
  
• Luke found a box of photos labeled 1970-1995.Each photo shows his entire extended family.No dates appear on the photos.Luke knows that his grandmother died in 1985 and his uncle was born in 1975.Luke's sister was born in 1990?
  
• How many grams are in #2.3 xx 10^4color(white)(l)"mol"# of calcium phosphate, Ca3(PO4)2?
  
• A 57.50 g sample of metal changes its temperature from 10.5 °C to 57.7 °C when it absorbed energy from a 87.7 g sample of water whose initial temperature was 65.1 °C. What is the specific heat of the metal in J/g·°C?
  
• What is the function of the Ribosome?
  
• What are the mole fractions of H3PO4 and water in a solution of 14.5g of H3PO4 in 125g of water?
  
• Number of ribbons it can sell each week, x, is related to the price p per ribbon by the equation x=900-100p. At what price should the company sell the ribbons if it wants the weekly revenue to be $1,800? (Remember: The equation for revenue is R xp)
  
• Question #60472
  
• Question #bf43b
  
• The product of a number and negative five-ninths decreased by forty-three is the same as twenty-five increased by five-ninths times the number. What is the number?
  
• Question #235d2
  
• If q varies directly as r and inversely as s. When r = 12 and s = 16, q is 72. For what value of r will q = 192 when s = 17?
  
• How do you solve this system of equations: #2- 5x \geq 7 and 3- 7x \leq 31#?
  
• Which of the following is an oxidation-reduction reaction?
  
• How do yo solve this problem of Lineal Equation?
  
• Question #dfcb3
  
• Question #bd2d5
  
• Calculating the molecular formula of caffeine? Caffeine, contains 49.48% Carbon, 5.15% Hydrogen, 28.87% nitrogen, 16.49% oxygen. It has a molar mass of 194.2 gmol -1.
  
• Question #6c6cc
  
• Jared made #12 3/4# cups of snack mix for a party. His guests ate #2/3# of the mix. How much snack mix did his guests eat?
  
• How do you find the quotient #(4y-8)/(y+1)div(y-2)#?
  
• You wish to zip from the top of the school to your bus. The school is 40 feet tall and the bus is 56 feet. What is the length of the rope you'll need for the zip line?
  
• This image shows a square pyramid. What is the surface area of this square pyramid?
  
• An object is made of a prism with a spherical cap on its square shaped top. The cap's base has a diameter equal to the length of the top. The prism's height is # 9 #, the cap's height is #8 #, and the cap's radius is #7 #. What is the object's volume?
  
• What are the values of the trigonometric ratios for this triangle? Match the correct ratio to each item.
  
• What is the value of x?
  
• #What is the value of x?
  
• What is the degree measure of x in this triangle? Round only your final answer to the nearest hundredth.
  
• Question #3ce48
  
• How do you solve using the completing the square method #x^2 - x - 1 = 0#?
  
• Question #d04ce
  
• Question #e3bdf
  
• How do you solve #n(n-4)+n(n+8)=n(n-13)+n(n+1)+16#?
  
• Question #00584
  
• Question #bc37c
  
• A rectangle is inscribed in an equilateral triangle so that one side of the rectangle lies on the base of the triangle. How do I find the maximum area of the rectangle when the triangle has side length of 10?
  
• How do you evaluate the expression #2^5*2^3# using the properties?
  
• Question #651e6
  
• Isaac has written down one integer two times and another integer three times. The sum of the five numbers is 100, and one of the numbers is 28. What is the other number?
  
• Question #745a3
  
• How do you find the derivative of #s=-3/(4t^2-2t+1)#?
  
• What is an asymptote?
  
• How do you factor #x^2+5x-24#?
  
• How do you simplify #(x^2+5x)/(2x)#?
  
• What is the derivative of #ln(8x)#?
  
• What does csc 2pi equal?
  
• The radius r of a sphere is increasing at a constant rate of 0.04 centimeters per second.At the time when the radius of the sphere is 10 centimeters, what is the rate of increase of its volume?
  
• Question #00a87
  
• How do you use the double angle or half angle formulas to simplify #1-2sin^2(2x)#?
  
• How do you find two solutions (in degree and radians) for #secx = sqrt2#?
  
• How do you multiply #(3-y^6)(3-y^6)#?
  
• How do you find the average rate of change for the function #f(x) =x^3# on the indicated intervals [2,h]?
  
• How do you simplify #(x-6)/(x^2-7x+6)#?
  
• How do you find the derivative of #1.5x^2-x+3.7#?
  
• The second of two numbers is 3 less than twice the first. Their sum is 36. How do you find the numbers?
  
• Question #a2ae9
  
• How do you simplify #sqrt(32a^7b^4 )#?
  
• How do you solve #sqrt(x+2)=4#?
  
• How do you find the area of the triangle when 24ft tall and the hypotenuse is 26ft?
  
• How do you solve #x^2-3x = 28# by factoring?
  
• How do you estimate the instantaneous rate of change for #f(x) = 3/x# at #x=2#?
  
• What is 4% as a decimal?
  
• How do you simplify the cubed root of 40?
  
• How do you solve 3x + 4y = 4 and 2x + y = 6?
  
• Question #03033
  
• How do you simplify #(t^2-25)/(t^2+t-20)#?
  
• How do you factor #x^8 - 1 #?
  
• In triangle ABC, the angle C is six times as large as angle A. The measure of angle B is 52 greater than that of angle A. How do you find the measure of the angles?