Monday
April 21, 2014

Posts by Mariana


Total # Posts: 43

chem
why would it not be [Kr] 5s^2,4d^9

Chemistry....helpppp
Predict Which among the following substances is likely to have a relatively high melting point.(more than one answer may be selected) * P4 * CaCl2 * CCl4 * AlN * CaC2 * None of the above

Chemistry
What is the electron pair geometry for NCL3?

Chemistry
What is the electron pair geometry for NCL3?

math
i am stuck on this problem! help! Write a quadratic equation that has two solution, 4 and -4. Leave the polynomial in reduced factored form.

math
find the GCF 87h^14t^16,6h^2t^27,15h^6t^28

Chemistry
Why is ionization energy for calcium greater than that for potassium?

Chemistry
how do i write the complete electron configuration for Ga3+ and Mg2+????????????

Chemistry
how many moles of Mg2+ and NO3(there is a negative sign on top of the 3 in NO3)form for each mole of Mg(NO3)2 that dissolves?

Algebra 2
A Ball Bounced Four Times,reaching Three Fourths Of Its Previous Height With Each Bounce .after The Fourth Bounce,the Ball Reached A Height Of 27 Cm. how High Was The Ball When It When It Was Dropped?

health information
some examples on some responsibilities on how a manager of a 60bed will have after he is assigned to also run a 90 beds. Becoming a split department. What does this split department situation do to your efficiency as a mannager, and how can you compensate for this change? Also...

health information
becoming a split department manager. Generate a list of the ways in which you believe your responsibilities and the tasks you perform are likely to change because of the merger and your resulting new role?

Algebra
idont the answer i need help

physics
a force of 5 N is required to slide a block at constant speed over the dry surface of a table. The block has a mass of 2.5 kg. The coefficient of friction is..

Spanish
SraMcGin, si me permite decirle, "norteamericana" se pudiera referir igualmente a alguien de Canada. Norteamerica no es exclusiva de Estados Unidos.

Spanish
And when I said it was right, I meant the translation in your second post. "Estadounidense" is the right word.

Spanish
Julian, yours is alright. The word "americana" is a wrong translation.

Biology
Using the codon table, determine the sequence of the protein that will be produced from the mRNA sequence below. Be sure to begin with a start codon. 5'-CCCAAUGUUGCGGCCAUGACAC-3' A. N-Methionine-Leucine-Arginine-Proline-C B. N-Methionine-Histidine-Serine-Threonine-Glyc...

Physics
What is the energy released in the fusion reaction: 2H+2H--> 4He + Q? How do I calculate this?

Physics
You are right, considering the mass of the electron emitted I got .352 MeV, which is the correct answer. Everywhere I looked on the internet said to neglect this mass, but I guess it does make a difference. My answer was negative though, does that mean that I only consider the...

Physics
How much energy is released in the beta decay of 14 C? Since carbon-14 decays into Nitrogen-14, the mass of carbon 14 is 14.003242 and the mass of nitrogen 14 is 14.003074, What I did was: (14.003242-14.003074)u * 931.5 MeV/c^2 = (0.156 MeV/c^2)*c^2 = .156 MeV but that's n...

Chemistry
Calculate the pH at the equivalence point for the titration of 0.120 M methylamine with 0.120 M HCl (kb of methyalamine is 5.0 x 10^-4)

Biology
Does light wavelength affect cellular respiration rate? I know that it affects photosynthetic rate. I think it is not supposed to affect cellular respiration rate, but I recently conducted an experiment that has proved otherwise and I just want to make sure about the facts sin...

Statistics
Normal probabilities. 11% of all observations are less than z

chemistry
You have an aspirin dissolving in water, with this elements ( arthritis strength BC, arthropan and Ascripitin A/D), how can you separate them to find the amout of each on in water?

English
Into day's - in todays Some basic grammer and spelling that can be fixed by reading aloud and removing 'awkward' words/phrases. Even if they look good on the page, if they don't feel right you should remove them. Also using the same method properly place fullst...

Science. Please Help!
CHARLES LAW PROBLEMS

math
How much is 4.36 meters in centimeters?

Chemistry
Calcium carbide, CaC2, can be produced in an electric furnace by strongly heating calcium oxide (lime) with carbon. The unbalanced equation is CaO(s) + C(s) ¨ CaC2(s) + CO(g) Calcium carbide is useful because it reacts readily with water to form the flammable gas ace...

Chemistry
An unknown salt AS x XH2O was analyzed and found to contain 16.4 percent water. If the anhydrous salt has a formula mass of 183 amu, find the water of crystallization (X) for the hydrate. I have no idea how to figure this out! HELPP PLEASE!!

Chemistry
How do you find the molar mass of HBr?

Geometry
the answer in the book says 8 sqrt of 2. i dont know how to solve it though

Geometry
The sum of the squares of the measures of the sides of a square is 256. Find the measure of a diagonal of the square.

Geometry
The diagonals of a rectangle are 12 inches long and intersect at an angle of 60 degrees. Find the perimeter of the rectangle.

geometry
thanks!

geometry
the length of a diagonal of a square is 22 square root of 2 millimeters. Find the perimeter of the square.

us history
what do u mean by it has diversified our culture and what is an cause and effect for mirgration

us history
my question is on north americans mirgation it says expain one way that mirgration affects us today? then my next question says give one cause and effact of the mirgration of the frist americans?

math
how to dived fraction

math
how to dived fraction

2nd Grade Science
Some objects and ____________ things move quickly. What is the answer to fill-in the blank.

math
im doing percent proportions and it is asking: 57% if 109 is what number? And i already know that you start with 57/100 = x/109 but how do you get the answer, i cant figure it out!!!

Physics
i dont know

Pages: 1

Search
Members