Answers created by Peter M.
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When the gases sulphur dioxide and hydrogen sulphide mix in the presence of water, the reaction "SO"_2 + 2"H"_2"S" -> 2"H"_2"O" + 3"S" occurs. Here hydrogen sulphide is acting as?
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What is the angular momentum of a rod with a mass of 2 kg and length of 9 m that is spinning around its center at 12 Hz?
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The sum of two numbers is 72, and twice their difference is 24. What is the smaller of the two numbers?
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Which type of bond is formed when Ammonia and hydrogen ion bond together to form ammonium ion?
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What is the amount (in moles) of copper (II) sulfate pentahydrate that you will need to make 100mL of a 0.500 mol/L solution, with all the calculations?
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A truck pulls boxes up an incline plane. The truck can exert a maximum force of 2,400 N. If the plane's incline is (2 pi )/3 and the coefficient of friction is 5/3 , what is the maximum mass that can be pulled up at one time?
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Why is there are huge energy change between the 9th and the 10th electron in the sodium atom?
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Why is enthalpy an extensive property?
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Use the enthalpy of combustion of propene CH2= CHCH3(g), DeltaHCo =-2058 kJ mol-1, and the fact that DeltaHfo[H2O(l)] = -285.83 kJ mol-1, and DeltaHfo[CO2(g)] -393.51 kJ mol-1, to find its enthalpy of formation?
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A vehicle travelling with a uniform velocity was given a uniform acceleration, and in the sixth and tenth seconds after the acceleration began it was observed to travel 15 m and 23 m respectively. What is the acceleration and the initial uniform velocity?
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Question #a286d
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Question #68ada
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Organic Chemistry Help Please? D:
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How do you sketch the graph of y=-4(x-3)^2+2 and describe the transformation?
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How do you graph y<=3absx-1?
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How to do this question in regards of matrices and transformation?
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Create a formula/equation to calculate the x-value for the vertex of any parabola?
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Question #a0eaf
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Why do polyprotic acids become less acidic as they lose protons?
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Question #cc09c
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Marina bought 2.6 pounds of salmon at the fish market. The total cost was $38.87. What was the price of the salmon per pound?
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How do you solve 8( 1+ 7n ) = 8( - 2+ 6n )?
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In how many ways can 7 people be seated in a row o chairs if Jane and Joe must sit next to each other?
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Question #4a756
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Question #74ccc
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Cups A and B are cone shaped and have heights of 32 cm and 24 cm and openings with radii of 15 cm and 8 cm, respectively. If cup B is full and its contents are poured into cup A, will cup A overflow? If not how high will cup A be filled?
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Question #c4b94
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Question #2764f
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Given f(x) = 17-x^2, what is the average rate of change in f(x) over the interval [1,5]?
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How do you solve 25^ { 1- 3n } = 625^ { - n - 1}?
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Question #21560
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Question #c28d1
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How to simplify ((3x^-1)/(9y^2))^-2 and have the answer in positive exponential notation?
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How do you solve for V in B= (3V)/h?
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Kate is paid $84 a week, It takes Kate two and a half hours each day to complete her paper run. How do you calculate Kate's hourly pay rate per week?
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How do you simplify \frac { \frac { 6q ^ { 5} } { 5r ^ { 4} s ^ { 4} } } { \frac { 3p q ^ { 2} } { 20r ^ { 2} s } }?
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Question #28428
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Question #9b04c
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How do you write the equation of the line that passes through (-3, 3) and (2,-7)?
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How do you simplify cos^-1(sqrt2/2)?
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Question #3a307
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Question #dea46
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Question #fb2b9
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How many moles of H2O could be obtained by reacting 0.75 mole of H2O2 in the reaction H2O2+H2S→2H2O+S?
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Question #02816
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How do you find the coordinates of the vertices, foci, and the equation of the asymptotes for the hyperbola y^2=36+4x^2?
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Question #35611
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Question #b7de9
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How do you divide ( i-5) / (2i+12) in trigonometric form?
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Question #83550
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Question #d5343
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How do you find (h-g)(n) given h(n)=4n+5 and g(n)=3n+4?
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Question #39687
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What is the equation of the tangent line of f(x)=(2x^3 - 1) / (x^2-2x) at x=3?
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What is the domain and range of y=2e^(-x)?
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Question #1724c
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Question #2d4b3
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Question #9ce73
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How do you evaluate a^ { 5} \times ? = a ^ { 9}?
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How many milliliters of 0.306 M HCl are needed to react with 51.0 g of CaCO3?
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Question #35427
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Calculate the value of p in log49^2=plog7 ?
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Physics Question: A 2.0 kg block is launched up a frictionless ramp?
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Question #b9ee2
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Question #01808
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Question #50bb0
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Question #0bc37
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Question #3bdb8
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At 9:00 on Saturday morning, two bicyclists heading in opposite directions pass each other on a bicycle path.The bicyclist heading north is riding 6 km/hour faster than the bicyclist heading south. At 10:15, they are 42.5 km apart. What are their rates?
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The count in a bacteria culture was 700 after 20 minutes and 1000 after 40 minutes. What was the initial size of the culture?
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Question #3c7cf
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Q(t) = Q_(o)e^(-kt) may be used to model radioactive decay. Q represents the quantity remaining after years; k is the decay constant, 0.00011. How long, in years, will it take for a quantity of plutonium-240 to decay to 25% of its original amount?
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How do you solve (x - 5) / (x - 8) = (x + 1) / (x - 5)?
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A chemist mixes a 10% saline solution with a 20% saline solution to make 500 milliliters of a 16% saline solution. How many milliliters of each solution does the chemist mix together?
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How do you integrate (5x-3)/((x-2)(x-3)^2) using partial fractions?
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If there are 2.50xx10^18 lead atoms, what is the mass of this quantity?
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Given the reaction at equilibrium: N_2(g) + O_2(g) + e n ergy rightleftharpoons 2NO(g) What change will result in a decrease in the amount of NO(g) formed?
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Question #2ab12
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How do you solve 3/(x-2) = 1/(x-1) + 7/(x^2-3x+2)?
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How to work out the density?
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Question #0bf56
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A salesperson is paid $110 per week plus 15% commission on her weekly sales of x dollars. How do you find a linear function that represents her total weekly pay w in terms of x?
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Question #715a8
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If light has a wavelength of 468 nm, what is the energy of this light expressed with units of kJ/mol?
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How solve it?
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Question #77db3
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Question #62891
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How do you find the amplitude and period of y=4cos(72pit)?
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How many moles of Na^+ ions are present in 275.0 mL of 0.35 M Na_3PO_4 solution?
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Question #37594
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Question #e2eed
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Question #16386
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Question #6b532
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How do you find the limit of (x-cosx)/x as x approaches oo?
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Question #51b13
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Question #13f28
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An exothermic reaction releases 86.5 kJ. How many kilocalories of energy are released?
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Anyone good at chemistry? please try this question for me.
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Question #146da