Science & Mathematics - 13 October 2007

zygomatic process

2007-10-13 18:34:32 · 4 answers · asked by Terri L 2 in Biology

greater trochanter?

2007-10-13 18:33:50 · 4 answers · asked by Terri L 2 in Biology

2007-10-13 18:33:09 · 3 answers · asked by Terri L 2 in Biology

I can see feeding in the winter but in the summer let the birds do what nature meant them to do.Eat mosiquitoes and pollinate flowers.I know their pretty to look at but don't feed them in the summer.

2007-10-13 18:29:34 · 7 answers · asked by Henry B 5 in Zoology

2007-10-13 18:16:35 · 9 answers · asked by Aaron T 2 in Zoology

How many valence electrons does the ion have ?

How many electrons are in bonding orbitals ?
Enter an integer as an answer

How many electrons are in anitbonding orbitals ?
Enter an integer as an answer.

What is the bond order of the ion
Enter an integer or a decimal fraction e.g. 1 3.5

2007-10-13 18:14:00 · 3 answers · asked by esteffany 2 in Chemistry

1) 9.52g of magnesium chloride is dissolved in 250.0ml of water
i)Determine the concentration of the solution.
ii) To prepare a 1.00molL-1 solutin of magnesium chloride, so determine the mass of MgCl2 needed to prepare 500.0ml of the solution

Thanks heaps

2007-10-13 18:06:15 · 1 answers · asked by Snowydevil 1 in Chemistry

I have a unit test coming up in two days and want to know what a nonmetal oxide with water will yield.
In my textbook it says NO2 + H2O --> HNO3 + NO.
How does this work? Explain please! please use different examples of how this is done.

2007-10-13 17:57:24 · 4 answers · asked by H4X0Rshocks 3 in Chemistry

A 319 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 637 mmHg. Calculate the moles of Ar present.

2007-10-13 17:55:52 · 1 answers · asked by raleighzia 1 in Chemistry

When 0.655 L of Ar at 1.20 atm and 227°C is mixed with 0.250 L of O2 at 501 torr and 127°C in a 400 mL flask at 27°C, what is the pressure in the flask?

2007-10-13 17:55:18 · 2 answers · asked by raleighzia 1 in Chemistry

2007-10-13 17:50:03 · 3 answers · asked by mr.p 1 in Chemistry

get 100 percent free health care?

2007-10-13 17:42:24 · 7 answers · asked by S i r i 1 in Medicine

By best weather I mean. The most consitant weather. Meaning I do not like the cold and snow. But is there some state where the temp remains someone consistent year round?

2007-10-13 17:40:45 · 13 answers · asked by Anonymous in Weather

2007-10-13 17:29:34 · 1 answers · asked by fragile24 1 in Chemistry

2007-10-13 17:24:18 · 15 answers · asked by Anonymous in Astronomy & Space

Please help! i fill like my brain is going to come out of my brain! i dont know how to solve this i keep trying but i cant!
The center and radius of circumference M are (0,0) and 10, respectively. The center and radius of circumference P are (8,2) and 2, respectively. Circumference Q is internally tangent to circumference M and externally tangent to circumference P.Of course that there are infinitely many circumferences Q which have this property. Determine and graph the equation of the curve that contains the centers of all the circumferences of the Q kind.

2007-10-13 17:18:45 · 2 answers · asked by mshb30 2 in Mathematics

why?

2007-10-13 17:16:09 · 17 answers · asked by chipton 2 in Weather

If the only true way to heaven is to accept Jesus as the true lord and savior -
what about those who can never know Jesus?
I mean those who live in the the most exotic places such as the deep jungles of Amazonia or Indonesia?
These people can never know the Christian God, because there is no exposure.
Some say that these people are considered innocents - and they will go to heaven regardless.
My question is how can God allow certain groups of humans to live and "sin" as they see fit, and go to heaven - while those of us who are exposed to the Christian ideal must accept Jesus or go to hell?
Why would God say " You guys can live as you see fit, and come to heaven because you have not had the opportunity for "truth",
but you people who have heard the "truth" must suffer your sins and go to hell if you do not repent and accept me as the one true Lord and savior."
Why would God seperate these people from the rest of us? Is He a cruel God? Or a selective God?

2007-10-13 17:12:57 · 7 answers · asked by andipandi 3 in Earth Sciences & Geology

Is the productt of two imaginary numbers always an imaginary number? Justify your answer.

2007-10-13 17:11:00 · 0 answers · asked by mlsz28 1 in Mathematics

a rotating platform is to be used to test aircraft equipment under acceleration of 6g. If the acceleration is 50 cm from the axis, What angular speed is needed?

2007-10-13 17:08:15 · 2 answers · asked by vino 1 in Physics

1 g of KIO3{potassium iodate} is dissolved in water to gives a 250.00 cm^3 solution.
25.00cm^3 of potassium iodate is pippeted into a conical flask and add about 1.00cm^3 of 0.10gcm^-3 potassium iodine solution. and also add 0.1M sulphuric acid to acidified the mixture. {THUS, Iodine solution is liberatd}

KIO3 + 5KI+3H2SO4====> 3K2SO4 + 3I2 + 3H2O

then the mixture solution is titrated with 25.00cm^3 of
sodium thiosulphate solution to reach the end point.
THe 1 cm^3 of 0.1 Gcm^-3 of starch is also added to the mixture when it is near the end point



HOW CAN I FIND THE the following a,b coefficient in the

equation?
aNa2S2O3 + bI2 ===> products where a and b are the

stoichiometric coefficients

we do not have the molarity of sodium thiosulphate, how can

I find the number of mole of sodium thiosulphate?
also why starch solution should be also freshly prepared?




potassium iodide turns yellow on standing in air.
account for this phenomenon with the u

2007-10-13 17:06:21 · 3 answers · asked by smooth lens 1 in Chemistry

2007-10-13 17:05:42 · 7 answers · asked by samantha 5 in Earth Sciences & Geology

World population is 6.7 billion people. If we start with the biblical number of 8 people who survived the Great Flood 4111 years ago, we get an average population growth rate of 0.5% per year. To avoid changes caused by modern technology and medicine, let's deduct the last 257 years and use only the world' population of 791,000 people in year 1750. This gives us an average growth rate of 0.3% per year. This conservative figure is less than the world growth rate of 1% per year over the past 1000 years. It is also less than the 0.8% growth rate in Africa and Asia and the 0.6% growth rate in Europe, over the past 250 years.

At this rate of 0.3% per year, if we start with just 2 people 10,000 years ago, the world population would grow to 20,000 billions. This is 3000 times higher than the current world population. If we were to start 20,000 years ago, the world population would grow to 2*10**26. That's a population density of 130 billion per square foot. Now imagine millions of years?

2007-10-13 17:03:32 · 11 answers · asked by brandlet 2 in Biology

hi

2007-10-13 17:00:24 · 6 answers · asked by Anonymous in Botany

We were together as teenagers, I found him again 2 years ago.

2007-10-13 16:58:31 · 21 answers · asked by beckymarie2 3 in Paranormal Phenomena

I am in Tx. It seems to be getting a little cool, but not enough. When does it get cold?

2007-10-13 16:56:40 · 4 answers · asked by Retired Punk 2 in Weather

how do you prove that sin^2 (x) + cos^2(x) = 1 ? no matter what the value of "x" is???
please give an example

2007-10-13 16:55:50 · 9 answers · asked by starz8 2 in Mathematics

how do you prove that sin^2 (x) + cos^2(x) = 1 ?
please give an example

2007-10-13 16:54:19 · 6 answers · asked by starz8 2 in Mathematics

If the average of 4 and x is equal to the average of 2, 8, and x, what is the value of x?

2007-10-13 16:52:35 · 9 answers · asked by Lizzie 1 in Mathematics

2007-10-13 16:51:52 · 19 answers · asked by Mr. Dog 4 in Mathematics