Wednesday

July 30, 2014

July 30, 2014

Total # Posts: 33

**italian**

write a sentence using the expression "avere mal di"

**english**

gary waters the other plant every day

**english**

we plant two bean seeds in different pots.

**math**

thanks a lot

**math**

If 96% of Chinese couples have one child (which is female 50% of the time), and the remaining 4% of Chinese couples engage in sex-selective abortion until they have a male child, what is the ratio of females per 100 males among the children (to the nearest whole number)?

**economics**

. If 96% of Chinese couples have one child (which is female 50% of the time), and the remaining 4% of Chinese couples engage in sex-selective abortion until they have a male child, what is the ratio of females per 100 males among the children (to the nearest whole number)? una...

**CHEMISTRY**

yes i fond it ,, 0.551

**CHEMISTRY**

thanks but b>

**CHEMISTRY**

(a) A pressure vessel contains a large volume of CO2 gas at 10 atm pressure. A membrane composed of a poly(ether ketone) polymer with thickness 100 microns and net effective area of 100 cm2 covers a small perforated port in the container. The solubility of CO2 at 10 atm is 6.9...

**chemistry**

A photon interacts with a ground state electron in a hydrogen atom and is absorbed. The electron is ejected from the atom and exhibits a de Broglie wavelength of 1.828×10−10 m. Determine the frequency (in hz) of the interacting photon.

**chemistry**

0.435

**chemistry**

pls what about b

**chemistry**

(a) A pressure vessel contains a large volume of CO2 gas at 10 atm pressure. A membrane composed of a poly(ether ketone) polymer with thickness 100 microns and net effective area of 100 cm2 covers a small perforated port in the container. The solubility of CO2 at 10 atm is 6.9...

**chemistry**

something wrong ... cant find right amswer

**chemistry**

A photon interacts with a ground state electron in a hydrogen atom and is absorbed. The electron is ejected from the atom and exhibits a de Broglie wavelength of 1.828×10−10 m. Determine the frequency (in hz) of the interacting photon.

**Chemistry**

18 is not right

**Chemistry**

something wrong i cant got it

**Chemistry**

this answer also not righ

**Chemistry**

4.329E15 this answer is not right

**chemistry**

At temperatures above 930 ∘C, PbO reduces PbS to form metallic lead (Pb). The byproduct of the reaction is SO2. Calculate the amount of lead produced (in kg) when a reactor is charged with 553.0 kg of PbS and 830 kg of PbO.

**chemistry**

) The solubility of bismuth iodide (BiI3) in water is 5.891 x 10-3 M. Calculate the value of the solubility product. The dissolution products are Bi3+(aq) and I−(aq)

**math**

1)d/dx of cos4x/3-x^2(inculding quentient&chain rule) 2)sin^2x/1+cosx(same method)

**maths**

if sinØ=cosØ then find the value of Ø

**chemistry**

SrH2 + 2 H2O ==> Sr(OH)2 + 2 H2 Determine the number of grams of strontium hydroxide (Sr(OH)2) produced when 10.0 g of hydrogen gas (H2) is also produced. (Your answer must have at least 3 significant figures.)

**Math**

nfhewbh

**math**

i need the solutions of s^3+〖116∙s〗^2+3360∙s+38=0 please.

**math**

1.25=2.50

**parts of speech**

What parts of speeech in English express huour

**Math**

? confusing

**Hospitality**

Calculate the IRR and NPV of this project utilizing a 12% discount rate and a 15% cap rate. Ms. Brown was able to secure a loan for $1,540,000, and an equity investor agreed to invest the remaining $660,000 in exchange for 20% ownership in the project?

**geometry**

ABCD is a quadrilateral with center O. AO=8, BO=11, CO=8, and DO=11. Is ABCD a parallelogram? Explain you reasoning.

**Chem help**

Which of the three isomers: NOBr, OBrN, or ONBr, is the most stable? Where should I start??

**Chemistry**

I see where I made my mistake. Are there 12 valence electrons in C2H6?

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