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Posts by Riley

Total # Posts: 327

chemistry
how can you tell how many valence electrons family 3 (transition metals) have? im confused about this.

math
slope=-3 y intercept=-1

Chemistry
When CO2(g) (0.118 mol/L) and H2(g) (3.90 mol) in a 33.0 L reaction vessel at 980K are allowed to come to equilibrium the mixture contains 0.0853 mol/L of H20(g). What concentration (mol/L) of CO2(g) reacted? CO2(g) + H2(g) <--> CO(g) + H2O(g)

Chemistry
When 0.500 g of an unknown compound was dissolved in 15.0 g benzene, the freezing point depression was determined to be 0320C . The molar mass of the unknown compound is ? g/mol. (The freezing point depression constant for benzene is 512C kgmol .

Chemistry
? g of glucose C6H12O6 must be dissolved in 400 g of water to give a solution that is 0.258 m.

Chemistry
A solution is made by mixing 25.0 mL of toluene C6H5CH3 d=0867gmL with 135.0 mL of benzene C6H6 d=0874gmL . Assuming that the volumes add upon mixing, the molarity (M) and molality (m) of the toluene are how would i start this problem?

Chemistry
Is the solvation of borax in water an exothermic or endothermic process? i am thinking the it is endothermic...is that right?

science
i need to know if there are any technologies that were developed from the knowledge of static electricity. I also need to know what kinds of jobs people have that use these technologies. thanks

Physics
Two charges 10uC (point A) and -10uC (point B) are placed 10cm from each other. Find the electric field at a point P perpendicular bisector of AB at a distance 12cm from the middle. Can someone get me started on this one? I'd appreciate any help. Thanks

english
You could put:Women have been a great contributor to American culture.

english
I will go with Ms. Sue's answer. It could still be either way around.

Physics
Two charges (+4C and -3C)are separated by .00002m. What is the electrostatic force and its direction? Using Coulomb's law, I arrived at 2.696 x 10^20 J. Would the direction be said to be "towards the positive charge"? Is this correct? Thanks

Question
I have a question about my math. A cat falls in a hole at 12:00.The hole is 6ft deep. He climbs out at two feet per-minute,falling back one foot.What Time will the cat get out of the hole?

english
I need a version I can understand of The Prioress' Portrait from the General Prologue to the Canterbury Tales.

english
does anyone know a version of Twa Corbies that I can actually understand?

english
Was Chaucer the first author to use a frame story?

geography
Would Canterbury be considered in the Southeast part of England?

english (quote)
What does "almost everything in this isle enjoys immunity to poison" - Bede mean? Does it have something to do with Ireland?

religion
Since the imagination of evil encourages us to do real evil, how should we react to accounts from the media or elsewhere about monstrous evil in our neighborhood or elsewhere in the world?

religion
What ethic of interpretation is imposed on us by the fact that monstrous ritual is fantasy?

math
Jackies kitten is stuck on the window sill of her neighbors house. The window is 2.8m above the ground. The base of the ladder must be 0.7m away from the house and the ladder must extend 1m above the window sill. Will she be able to rescue the kitten, explain how..

graphs
If I have info. that fits into distinct catergories and want to compare totals what kind of graph should I use? A bar graph?

Algebra I
40(t+1.5)=60x t 2/3(t+1.5)= T

us history
The most useful indicator of the degree of democracy reached by a particular society is whether it has a... formal method whereby people can effect changes in government policy, system of government checks and balances, two-house legislature, system of liberal and humane ...

Physics
So what does this have to do with helping astronomers understand the development of the solar system? When the Earth rotates on its axis, is this part of angular momentum being conserved? Does angular momentum show the astronomers how the earth and other planets rotate?

Science
Is a tree a living organism? Yes, a tree is a living organism.

chemistry
help me predict the product sodium iodide-> You have only one reactant. Of course we could write sodium iodide ==> sodium iodide.

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