Friday
July 25, 2014

Posts by felix


Total # Posts: 64

Math
Suppose you are comparing two numbers that are greater than 1,000. You want to find the smaller of the numbers. How many pairs of digits might you have to compare before you have your answer? Explain.

Chemistry
Calculate the molar concentration of uncomplexed Zn2+ (aq) in a solution that contains 0.22 mol of Zn(NH3)4 2+ per liter and 0.3109 M NH3 at equilibrium. Kf for Zn(NH3)4 2+ is 2.9 X 10^9 I started this way... (0.3109 + 4)2/0.22-x)= 2.9 X 10^9

Chemistry (reposting)
In which of the following solution would CaC2O4 have the highest molar solubility? Please help. A) 0.01 M NaCl B) 0.01 M H2C2O4 C) 0.01 M Na2C2O4 D) 0.01 M NaHC2O4 E) 0.01 M HCl I think it is E because it is a strong acid and will completely dissociate

Chemistry
Calculate the molar concentration of uncomplexed Zn2+ (aq) in a solution that contains 0.22 mol of Zn(NH3)4 2+ per liter and 0.3109 M NH3 at equilibrium. Kf for Zn(NH3)4 2+ is 2.9 X 10^9 I started this way... (0.3109 + 4)2/0.22-x)= 2.9 X 10^9 I'm lost and cant figure out h...

Chemistry
In which of the following solution would CaC2O4 have the highest molar solubility? Please help. A) 0.01 M NaCl B) 0.01 M H2C2O4 C) 0.01 M Na2C2O4 D) 0.01 M NaHC2O4 E) 0.01 M HCl I think it is E because it is a strong acid and will completely dissociate..

physics
A cue ball rolling across a pool table at 5.7 m/s collides with a stationary eight ball of equal mass. The cue ball stops after the collision. What is the velocity of the eight ball after the collision?

english
possessive pronouns of martha katz's?

science
A solution contains 2 mEq/mL of KCL (Molecular weight 74.5). If a 20 mL ampule of this solution is diluted to 1 liter what is the percent strenght of the resulting solution?

Physics
(5x^-3)^2

math
8(x+1/2)=2x+4

math
30=3c+2(3c-3

math
3(d+2)-d=16

English
(This homework question has been removed because it was copied directly from a test.)

Geometry
Explain whether the following statement is a valid definition: “A 30° angle is an acute angle.” Use the converse, biconditional, and at least one Euler diagram to support your answer.

math
(from current question)5x+negative13x+6x+4x simplify

math
(from current question)14x+20y+negative17y+negative17x

math
5x+negative13x+6x+4x

math
14x+20y+negative17y+negative17x

math
what is the percent of 438 to 789

math
how you figure percents like percent of438 to 789

science
How many years after voyage 2's launch was it before scientists could view its photographs of Uranus?

math
the arcade has three pinball machines and five video games.If a person wants to play one pinball machine and one video game,how many different combinations of games could that person play?

math
fraction for15%

math
i need the fraction for3/8

math
a percent for 0.9 decimal

math
9/10 its the right answer

math
a fraction for 0.9 decimal

math
a percent for 3/8

math
convert 15% into a fraction

math
the decimal for 15%

math
find a fraction of 20%

science
why do you think that people choose to live in places where earthquakes are common

math
Mr.Garica's class is harvesting the school garden.The rectangular garden is twenty-five feet by fifteen feet.What is the area of the garden?

math
What the density of 16/2

math
how many feet are in 261.32 yards

math
what is 1/3of 98

math
the melt in your mouth chocolate factory is a rectangular building.The distence across the front of the store is 98 yards.The distance from the front to the back one-third of this distance.If the owners paint a sign all the way around the outside of the factory,how many feet l...

math
square roots to the nearest tenth of 42

math
find the square root to the nearest tenth of 13

math
square root of 64 and the square -64

math
the two square roots of 9 are 3 and what

math
the melt in your mouth chocolate factory sells three times as many mints as it sells almond bars.it sells half as many almond bars as it sells caramels.if it sells 3,750 cases of mints each month,how many caramels does it sell in one month

math
find the prime factorization of 175

math
ms.sue the answer you gave me is not to helpful without a diagram of composite and odd numbers 20-35

math
i need to complete a venn diagram using the numbers 20-35 please help me drawing a venn diagram.

math
what is the scientific notation for 1,890,000 and 7,426,000

math
i need to cmplete a venn digram of composite and odd using the numbers 20-35.

math
what is the scientfic notation of35,000and982,000,000

math
write in scientific notation 35,000 and 982,000,000

math
what is the fraction form of 5.1

math
which of the following numbers are integers?8,1-1/2,0,-1,3.1

math
Polk Elementary School has three classes for each grade level,kindergarten through fifth grade.If there is an average of 27 students per classroom,about how many students attend Polk Elementary School?

algebra
25 divided 0.76 in long formed

chemistry
If 50.0 g of sodium bicarbonate is reacted and 11.0 g of carbon dioxide is produced, what is the percent yield of carbon dioxide? 2NaHCO3 --> Na2CO3 + CO2 + H2O

English
What has a lot of power and start with with a "s" and ends with a "l".

calculus
If g is a differentiable function such that g(x) is less than 0 for all real numbers x and if f'(x)=(x2-4)g(x), which of the following is true? f has a relative maximum at x=-2 and a relative minimum at x=2, f has a relative minimum at x=-2 and has a relative maximum at x=...

math
on monday 86 science fiction books were sold at a book sale this is 8 more than twice the amount sold on thursday how many science fiction books were sold on thursday

Math
there were 10 quizzes. the range was 38. the mean was 90. there was one outlier. few students got 100. Find the sum of the 10 quiz.

economics
A professor of economics gives multiple choice exams each semester. He curves the exams by giving the maximum possible points to the high score on the exam. For example, if a 50 question exam is worth 100 points and the top score in the class is 40, then each question is worth...

Chemistry
C5H12 + 8O2 > 5CO2 + 6H2O

6th grade Math
what is the volume of 12 in 10 in 5 in

English IV Honors
The question already has all the answers...

math
which of the following numbers are integers?81/2,0,-1,3.1

english vocab word
I need a vocabulary word that means a lot of power and starts with a "s" and ends with a "l".

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