Answers edited by Oliver S.
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What is the derivative of this function # y=sin x(e^x)#?
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OH- Concentration of 0.015 M HCl?
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Which chemical properties make a substance hydrophilic?
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Calculate the mass of CO needed to react completely with 50.Og of Fe2 03?
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If 5,100 Joules of heat are released when a sample of water freezes,what is the mass of the water?
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How do you multiply #(7z + 8x ) ( 7z - 8x )#?
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Compare and contrast isotopes and atoms ?
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How to do this question?
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What electromagnetic waves are used for communication?
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Calculate the amount of heat required to convert 45.0 g of water at 43.0 ∘C to steam at 100.0 ∘C.?
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Can forces be combined?
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How do alpha particles cause ionisation?
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The square of Mark's age 3 years ago is 6 times the age he will be in 9 years. What is his age now?
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What is # 3^(3/2)# in radical form?
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A 4.0 M solution of Mg(OH)2 is completely neutralized 160 mL of a 1.0 M solution of HCl.
How many milliliters of magnesium hydroxide were required?
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How do you find the amplitude, period and phase shift for #y=cos3(theta-pi)-4#?
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What is the cofficient of Cr^2+?
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A bicycle possesses 1000 units of momentum. What would be the bicycle's momentum if its velocity is doubled?
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If a sample of LiF is found to contain 7.73 x 10^24 Li+ ions how many grams of LiF formula units are present?
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Oxalic acid is diprotic. What volume of 0.100M KOH is required to neutralize 25ml of 0.333M oxalic acid?
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What’s the final temperature in Kelvin of 1.5 gallons of water, with an initial temperature of 50 Fahrenheit, if you add 432 kJ to the water?
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How do you calculate the energy change of reaction for the following reaction?
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What it metal cation, including charge, from the compound #CuCl_2#?
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A collection of 22 laptops includes 6 defective laptops. If a sample of 3 laptops is randomly chosen from the collection, what is the probability that at least one laptop in the sample will be defective?
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What happens to the distance between energy levels at higher energy levels?
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What are the simple units that make up proteins?
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The value of an early American coin increases in value at the rate of 6.5% annually. If the purchase price of the coin this year is $1,950, what is its value to the nearest dollar in 15 years?
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What is the pH of a solution that is 5.0×10−2 M in H2CO3?
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Why is pOH important?
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On the EM Spectrum, which type of wave has the most energy?
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Why is the change in Gibbs energy negative?
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Why are some molecules hydrophobic?
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How do you find the antiderivative of #f(x)=8x^3+5x^2-9x+3#?
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How do you find the volume of the solid generated by revolving the region bounded by the graphs of the equations #y=sqrtx#, y=0, and x=4 about the y-axis?
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The acid dissociation constant of #"H"_2"S"# and #"HS"^-# are #10^-7# and #10^-13# respectively. The pH of 0.1 M aqueous solution of #"H"_2"S"# will be?
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Chem Help????
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What would be the kinetic energy?
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How do you expand #(3x-5y)^6# using Pascal’s Triangle?
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How do you define sound intensity?
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When bonds form, energy does what?
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If you have 16.8 L of gas at 1.0 atm, what is the new pressure if the volume is reduced to 15.0 L?
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How many molecules are in 30 liters of methane #CH_4# at STP?
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What is the best way to study for an Algebra test?
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How do velocity and acceleration differ?
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A 12 inch (in diameter) pizza is cut into various sizes. What is the area of a piece that was cut with a central angle of 31 degrees?
The area of the piece of pizza is approximately ____ square inches.
(Round to two decimal places as needed.)
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The specific heat of water is 4.184 J/g times celsius degree. How much heat is required to raise the temperature of 5.0g of water by 3.0 C degrees?
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Why did Hitler want the area called the Sudetenland?
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Which of the given salt will have maximum pH?
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How do you find the slope of the line passing through the points (-7,3) and (3,8)?
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Expalain the free radical substitution of alkane?
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How do covalent bonds form?
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What is your limiting reactant if 32 grams of CH4 reacts with 32 grams of oxygen gas?
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How do you use the chain rule to differentiate #f(x)=sin(1/(x^2+1))#?
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How do you solve #(x-3)^2=3(x-3)#?
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How many stable isotopes does oxygen have?
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Chemistry A/As Level question? HELP!
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