11/18/22

If f(x) and g(x) are linear functions, the f(x) + g(x) is a linear function.
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11/18/22

Solve for x. 3600=400(2^10x)
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11/18/22

If log M/N=5 and log P/N=7, what can you say about the relationship between M and P?
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04/01/20

If 4 moles of HCl react with 2 moles of CaCO3 then how many moles of CO2 will be formed?
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04/01/20

What Osmotic Pressure would a 2M sugar solution generate at 15oC (SW) Osmotic Pressure (Pi) Pi = MRT R = .08 L Atm/mol K
What Osmotic Pressure would a 2M sugar solution generate at 15oC (SW)Osmotic Pressure (Pi)       Pi = MRT       R = .08 L Atm/mol K
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04/01/20

What is the correct answer? Choose a letter?
3. Given the function f(x)=x2+10x+24, what is the range?A. -6≤ x≤-4B. f(x) ≥-6C. f(x) ≥-1D. All real numbers
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03/30/20

If I have 7 moles of a gas at a pressure of 4.6 atm and a volume of 14 liters, what is the temperature?
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03/30/20

the resulting solution will have a pH of what ?
Hydrazine (NH2NH2) has a Kb = 3.0 x 10-6. If 100.0 mL of a 0.5000 M aqueous hydrazine solution is mixed with 100.0 mL of 0.5000 M aqueous hydrochloric acid, the resulting solution will have a pHthe... more
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03/27/20

I need help answering questions about Newton’s laws
1) under what conditions will a smaller vehicle have a greater momentum than a larger vehicle?2) which requires more force to overcome static or sliding friction.3)what are the variables in... more
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03/26/20

identify an equation in point slope form for line parallel to y=1/2x-7 that passes through (-6,5)
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03/24/20

Equilibrium constants

Consider the reaction below.  1.44 mol of A and 8.20 mol of B are added to a 6.0 L container.  At equilibrium, the concentration of A is 0.178 M.  What is the value of the equilibrium constant?   3... more
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03/24/20

a horse pulls a 68 kg buggy down the road with a force of 57 N, the buggy makes an angle of 25 degrees above the horizontal. If the force of friction on the buggy is 4 N, what is the acceleration?

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03/22/20

What is the solubility in moles/liter for lead(II) sulfide at 25 oC

What is the solubility in moles/liter for lead(II) sulfide at 25 oC given a Ksp value of 8.8 x 10-29. The answer is 9.38*10-15 or 9.4*10-15
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03/22/20

What is the solubility of Al(OH)3 in a solution that has pH = 12?
The Ksp of Al(OH)3 is 1.0 x 10-33. What is the solubility of Al(OH)3 in a solution that has pH = 12?The answer is 1*10-27
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03/22/20

What is the solubility of AgCl in 0.010 M NaCl?
The Ksp of AgCl is 1.6 x 10-10. What is the solubility of AgCl in 0.010 M NaCl? Give your answer using scientific notation and to 2 significant figures The answer is 1.6*10-8
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03/21/20

Calculate the value of Ksp at this temperature.

At 25 oC the solubility of magnesium fluoride is 1.17 x 10-3 mol/L. Calculate the value of Ksp at this temperature. Give your answer in scientific notation to 2 SIGNIFICANT FIGURES
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02/06/20

If 10 L of methane are combusted with 18 L of oxygen, at STP, how many liters of carbon dioxide, at STP, will be produced?
Can you explain how you solve it in easy to follow steps please?
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07/26/19

For the reaction CO(g) + Cl2(g)COCl2(g) G° = -65.7 kJ and S° = -137.3 J/K at 310 K and 1 atm.
For the reactionCO(g) + Cl2(g)COCl2(g)G° = -65.7 kJ and S° = -137.3 J/K at 310 K and 1 atm.The maximum amount of work that could be done by this reaction when 1.71moles of CO(g) react at standard... more
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05/04/19

Help me solve these questions please
1. Solve the system: 2x + y = 5                              x – y = 132. Bobby is three years older than twice Arianna’s age. If the total of their ages is 9, how old is Bobby, and how old is... more
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04/09/19

How many grams of iron (III) oxide are produced when 38 grams of beryllium oxide react with iron (III) phosphate
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04/08/19

Can you help me with this algebra equation
A pebble drops from a balcony that is 160 feet above the ground. The pebble lands on the top of a sign that is 16 feet high.  The function  represents the height  (in feet) of the pebble  seconds... more
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04/08/19

if y varies directly as x and y=18 when x=24, find x when y =15
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04/04/19

Math GRE: Calculus Textbooks - is Spivak + Stewart + Rudin sufficient?
Recently, I splurged and spent $1000 in math textbooks in preparation for the Mathematics GRE subject test. So far, in terms of calculus books, I have purchased Spivak, Stewart, and Baby Rudin.... more
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04/01/19

How many molecules of water...
Called the water of hydration, surround each molecule of sodium carbonate decahydrate, Na2CO3 . 10H2O?And calculate the molar mass of sodium carbonate decahydrate.
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03/31/19

Jackie’s parents invested money at an interest rate of 6% compounded continuously. How much money did the parents invest when Jackie started his first grade to accumulate $20000 after 12 years?

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