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• Question #d9b53
  
• How many moles of H2SO4 are need to produce 13 moles of H2O?
  
• Is there any shortcut methods for integration of logarthmic or exponential function ?
  
• Question #07091
  
• Lim x->0 √1-cos 2x/√2x=? Thanks
  
• How do you graph #theta=-840^circ#?
  
• When electricity is produced from coal, the chemical energy in coal is first changed to what type of energy?
  
• How to solve the equation #z^4=ibarz# ? Where z is a complex number.
  
• How do you simplify #\frac { gh ^ { - 9} \cdot g ^ { 0} h } {gh ^ { 0} }# with positive exponents?
  
• How would you express Tin (IV) oxide as a chemical formula?
  
• What is the balanced complete ionic equation for #NH_4Cl(aq) + NaOH(aq) -> H_2O + NH_3(g) + NaCl(aq)#?
  
• Which occupies more space: 5 g of solid gold or 5 g of liquid gold?
  
• What is a standard solution?
  
• Is it possible for the equivalence point of a titration to not be at pH 7?
  
• How do you integrate #int y/(e^(2y))# by integration by parts method?
  
• How do you use the Fundamental Theorem of Calculus to find the derivative of #int xsin(πx) # from 1 to x^2?
  
• How do you evaluate the limit #(sqrt(x+4)-2)/x# as x approaches #0#?
  
• How do you integrate #(ln x) ^ 2 / x ^ 2#?
  
• How do you evaluate: #lim_(x rarr 0) xsin(1/x)#?
  
• How do you find the derivative of #-2e^(xcos(x))#?
  
• Question #f26bd
  
• How do you convert 0.320 atm to mm Hg?
  
• What does it mean if a function is not differentiable at a point?
  
• Which halogen has the least attraction for electrons?
  
• What kind of salt (acidic or basic) is #Zn(CH_3COO)_2# solution?
  
• How are the formulas for acids determined?
  
• How do solutes affect the properties of solvents?
  
• How many protons are in the nucleus of aluminum?
  
• How do acid base indicators work?
  
• What are some common mistakes students make with the Nernst equation?
  
• Question #f0076
  
• What are some examples of quantitative and qualitative measurements?
  
• For the balanced equation #2C_2H_5OH + 6O_2 -> 4CO_2 + 6H_2O#, how many moles of #O_2# will react with 0.3020 moles of #CO_2#?
  
• How many moles of #CoO(s)# will be formed for every mole of #CoCl_2 * 6H_2O(s)#?
  
• What is the correct name for #MgF_2#?
  
• What is the name of #Ni_3(PO_4)_2#?
  
• In the reaction #2Li(s) + 2H_2O(l) -> 2LiOH(aq) + H_2(g)#, what compound is in the liquid state?
  
• How do you write a polynomial with zeros -2,-2,3,-4i?
  
• Question #04194
  
• Question #df832
  
• Question #15796
  
• What does cosx sinx equal?
  
• How do you find the inverse of #A=##((-3, 6), (2, -4))#?
  
• What are the all the solutions between 0 and 2π for #sin2x-1=0#?
  
• How do you solve #2 ln x = 1#?
  
• How do you solve #log(x-15)+logx=2#?
  
• How do you simplify #((-15(ab)^2)/(5a^2b))^5#?
  
• Question #34d98
  
• How do you implicitly differentiate #6=lny/(e^x-e^y)-e^x-e^y#?
  
• What is the empirical formula of a molecule containing 24% carbon, 6% hydrogen, and 70% chlorine?
  
• Question #6e2b5
  
• Question #94101
  
• What is the equation of the line tangent to # f(x)=x^(1/x)# at # x=1#?
  
• What is the advantage of a logarithmic model?
  
• How do you balance #C_3H_6 + O_2 -> CO + H_2O#?
  
• How do you integrate #int x^2e^x dx # using integration by parts?
  
• Given the equation:#N_2+3H_2 rarr 2NH_3#, what volume of #NH_3# at STP is produced if 25 grams of #N_2# is reacted with an excess of #H_2#?
  
• What is the difference between weak acids and strong acids?
  
• How do you solve the following system?: #-x -2y =-1, 6x -y = -4#
  
• Question #d5ff0
  
• How do you simplify #cos(x-y)-cos(x+y)# to trigonometric functions of x and y?
  
• What is the solubility of solids in water?
  
• How do you solve using gaussian elimination or gauss-jordan elimination, #-2x -3y = -7#, #5x - 16 = -6y#?
  
• How can you use trigonometric functions to simplify # 16 e^( ( 23 pi)/12 i ) # into a non-exponential complex number?
  
• What is an example of an oxidation reaction practice problem?
  
• How do you find all the real and complex roots of #x^7 + 128 = 0#?
  
• Question #ed5f9
  
• How do you solve #log_2 (x-1) = log_4 (x+1)#?
  
• When i add KMnO4 into an unsaturated carboxylic acid the color of KMnO4 changes to brown and when i added few drops of H2SO4 into this brown solution the brown color disapears. how this occur kindly help me????
  
• What are the removable and non-removable discontinuities, if any, of #f(x)=abs(x-9)/ (x-9)#?
  
• What is the derivative of # f(x)=sec^2xcosx#?
  
• How do you integrate #f(x)=x/((x-2)(x+4)(x-7))# using partial fractions?
  
• Show that #intx²( e^x -1 )dx = x²e^x -2xe^x +2e^x -(x^3)/3 + c#?
  
• How do you integrate #int (2+sin(x/2))^2 cos(x/2)dx# using integration by parts?
  
• How do you integrate #int x^2 cos3 x dx # using integration by parts?
  
• How do you integrate #int x sinx dx # using integration by parts?
  
• What is the antiderivative of #lnsqrt( 5 x )#?
  
• How do you integrate #int x^2 e^(-x) dx # using integration by parts?
  
• What is the antiderivative of # (ln(x+1)/(x^2))#?
  
• How do you integrate #int (4^(7x)) / (5^(2x)) # using integration by parts?
  
• How do you integrate #int xe^x dx # using integration by parts?
  
• What is the antiderivative of #ln(root3(x))#?
  
• How do you integrate #int x^2 sin x dx # using integration by parts?
  
• How do you integrate #int e^x sin x dx # using integration by parts?
  
• How do you integrate #int x^3 t an x dx # using integration by parts?
  
• How do you differentiate #f(x)=e^sqrt(1-(3x+5)^2)# using the chain rule.?
  
• What is #int tan^2(x) * sec^3(x) dx #?
  
• What is #int_(pi/8)^((11pi)/12) cos^3x-sinxdx#?
  
• For #f(t)= (cost/2,sin^2t)# what is the distance between #f(pi/4)# and #f(pi)#?
  
• How do you implicitly differentiate #9=ye^(2y)/x#?
  
• Question #f3b71
  
• Given the incomplete equation for the combustion of ethane, #2C_2H_6 + 7O_2 -> 4CO_2 + 6__#, what is the formula of the missing product?
  
• What is the distance between #(8,0,6)# and #(1,-4,5)#?
  
• What is the force, in terms of Coulomb's constant, between two electrical charges of #-2 C# and #-3 C# that are #5 m # apart?
  
• What are the critical values, if any, of #f(x)=xe^(-3x)#?
  
• How do you find the integral of #int ( x^2 / sqrt(4 - x^2) ) dx#?
  
• What is # lim_(->-oo) f(x) = absx/(16-x^2) #?
  
• What's the integral of #int sin(x)tan(x) dx#?
  
• What is the general formula for the derivative of the natural logarithm?
  
• What are the first and second derivatives of # g(x) =x^2/(lnx)^2#?
  
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