Answers created by Pitufox27

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• Question #b9c49
  
• How atoms of hydrogen are there in the formula #C_2H_5OH#?
  
• How do you calculate the molarity of 0.060 moles #NaHCO_3# in 1500. mL of solution?
  
• An element that has a low first ionization energy and good conductivity of heat and electricity. What is this element classified as?
  
• How do you differentiate #f(x)=(x-3lnx)(cosx+2x)# using the product rule?
  
• A person gets cooler by perspiring. Is this a chemical or physical change?
  
• Question #bcf6f
  
• What is the difference between corrosion and erosion?
  
• How do you simplify #(cos^2x-4)/(cosx-2)#?
  
• Question #29222
  
• What are eigenvectors and eigennumbers?
  
• Question #678ec
  
• A cone with a height of 6 and a volume of 18∏. Can you fine the radius?
  
• What is #f(x) = int e^(2x-1)-e^(1-2x)+e^x dx# if #f(2) = 3 #?
  
• The surface area of a cube is #486# #i##n^2#. What is the volume of the cube?
  
• Is #f(x)= sin(x+(3pi)/8) # increasing or decreasing at #x=pi/12 #?
  
• Question #82d07
  
• What is the chemical formula for an ionic compound of potassium and oxygen?
  
• How do you solve and graph the inequality #-3x-1< -5x+5#?
  
• How do you simplify 2 square root -49?
  
• Question #d4070
  
• How do you write #6.92*10^-8# in standard notation?
  
• What is the maximum value of the function #y=2sin3x#?
  
• How do you solve the quadratic #7x^2+5=-137# using any method?
  
• As a general rule, does the heart rate of an animal increase or decrease with size? Is there a certain pattern?
  
• A spring with a constant of #5 (kg)/s^2# is lying on the ground with one end attached to a wall. An object with a mass of #1 kg# and speed of #12 m/s# collides with and compresses the spring until it stops moving. How much will the spring compress?
  
• How do you simplify #3/4n+3m-1/3n+1/4m#?
  
• How do you find the zeros, real and imaginary, of #y= -x^2-2x-1 # using the quadratic formula?
  
• The point (-3,2) lies on a circumference whose equation is #(x+3)^2+(y+1)^2-r^2 = 0#, what is the radius of the circumference?
  
• How do you write the linear equation #-12x+8y=-32# in slope-intercept form?
  
• How do you write 19/25 as a percentage?
  
• What kind of conic is defined by the equation #2x^2+2y^2-8x+12y+2=0#?
  
• A sample of oxygen gas expands in volume from 1.6 L to 5.4 L at constant temperature. What is the work done in joules if the gas expands against a constant pressure of 0.80 atm?
  
• How do you integrate #int (x^2-1)/(x^(3/2))dx#?
  
• Question #59a03
  
• How do you solve the system of equations #13x - 5y = 20# and #13x - 5y = 10#?
  
• A man must mix some liquid fertilizer for his lawn. The instructions say to use 2 cups of chemical for every 1/2 gallon of water. How many cups of chemical will be needed for 13 gallons of water?
  
• An experiment shows that a 252 mL gas sample has a mass of 0.433 g at a pressure of 760 mm Hg and a temperature of 34 degrees C. What is the molar mass of the gas?
  
• How do you use the chain rule to differentiate #y=sin^2x/cosx#?
  
• Given #f(x)=root3(x-8)# how do you find f(-208) and f(8)?
  
• An ionic bond occurs between what particles? t
  
• A force of magnitude #F_1# accelerates a body of mass #m# from rest to speed #v#. Another force #F_2# accelerates a body of mass #2m# from rest to a speed #2m#. What is the ratio of the work done by #F_2# to that of #F_1#?
  
• How do you find the domain of #f(x)=sqrt(1/2x-10)+3#?
  
• How do you write 27/18 as a decimal?
  
• I am very confused about anti-bonding orbitals, how they form? I mean when two atomic orbitals produce bonding orbital + anti-banding orbital?? Please clear my basics. I am really worried, please solve my problem
  
• How do you find the local extremas for #f(x)=xe^x#?
  
• How do you solve #-4/7+y=-2/3#?
  
• How many seven–letter permutations can be formed from the letters of the word GIGGLES?
  
• Question #7e7e4
  
• I am very confused about anti-bonding orbitals, how they form? I mean when two atomic orbitals produce bonding orbital + anti-banding orbital?? Please clear my basics. I am really worried, please solve my problem
  
• Question #b793d
  
• How do you solve #236= - 4( - 8v - 2) + 6v#?
  
• Question #baea9
  
• How to find instantaneous rate of change for #f(x) = 3x^2+4x# at (1, 7)?
  
• How do you find the greatest common factor of 88, 66?
  
• What happens to the density of rock as it cools?
  
• What is the equation of the line that goes through #(0, 7)# and #(1,9)# in point-slope form?
  
• During an athletics training session, Jenny runs 12 laps of a 400-meter track. She wants to run a total of 8 km. How many more laps does she need to run?
  
• Question #7c363
  
• How do you find the greatest common factor of 20, 16?
  
• Is xenon reactive?
  
• How many valence electrons does #N# have?
  
• How do you find the limit of #(x-3)/(x^2+4)# as #x->1#?
  
• How do you find the limit of #x/sinx# as x approaches 0?
  
• Question #a6cdc
  
• What is the element with the lowest electronegativity value? How do you determine this?
  
• It takes Joey #1/16# of an hour to write one Thank You card. How many cards can he write in #3/4# of an hour?
  
• If the length of a side of a regular cube is 12 cm, how do you find its volume?
  
• A model train with a mass of #4 kg# is moving along a track at #18 (cm)/s#. If the curvature of the track changes from a radius of #25 cm# to #42 cm#, by how much must the centripetal force applied by the tracks change?
  
• How do you find the product of #2times10^-4# and #3.4 times 10^6#?
  
• How do you simplify #6.3 + (-3.569)#?
  
• What is the value of #x# in #g(x)=-97.2x-83.2# when #g(x)=-38#?
  
• How do you solve #11+ | - 2+ x | = 30#?
  
• How can I balance this equation? ____ #KClO_3 -># ____ #KCl +# ____ #O_2#
  
• Question #f0b84
  
• How many unpaired electrons are in a mercury atom?
  
• Question #4821a
  
• How do you multiply #(-4i)^3#?
  
• What is the final temperature when 100 g of water at 25#"^o#C is mixed with 75 g of water at 50#"^o#C?
  
• What is #f(x) = int -x^2+x-4 dx# if #f(2) = -1 #?