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Science & Mathematics - 19 November 2007

[Selected]: All categories Science & Mathematics

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If so, are you finding it difficult to find work?

2007-11-19 01:07:06 · 3 answers · asked by ameeker 3 in Geography

A street of houses numbered from 1 to 100 inclusive is to be numbered with new brass numerals. How many of the digit "2" would be needed to complete the job?

explain in detail/step by step in how you solved this. thx.

2007-11-19 01:04:17 · 4 answers · asked by dz.dahood 2 in Mathematics

Well, I didnt pay attention for this one...

But when we say a statement and we are going to write a reason for it like this:

Triangle ABC is isoceles l Converse of ITT

When do we say like converse of ITT or just ITT?

Thank you!

2007-11-19 01:03:24 · 1 answers · asked by Anonymous in Mathematics

i need it in one min.

2007-11-19 01:01:14 · 24 answers · asked by Anonymous in Geography

Why isn't it here... where I live... in the north west! good ol' Lancashire.

2007-11-19 00:49:20 · 39 answers · asked by tera_the_giga_dragon_bytes 3 in Weather

2007-11-19 00:48:50 · 10 answers · asked by Anonymous in Astronomy & Space

Q: If $800 is deposited in a savings account that pays an interest rate of 5% annually, how much money will be in the account after 15 years. Possible Answers: A) $1,663; B) $1,609; C) $384; D) $238. I can't for the life of me figure it out. Please help!!!

2007-11-19 00:37:55 · 3 answers · asked by bootlegteen47 2 in Mathematics

I have a engineer lensatic compass .how do u use it

2007-11-19 00:32:44 · 2 answers · asked by Anonymous in Astronomy & Space

0

2007-11-19 00:28:59 · 2 answers · asked by Anonymous in Geography

I have lost the lab manual where it tells how to obtain the # of H2O molecules (X) (ex. CuSO4 - X H2O)
Details on experiment:
Weighed sample of hydrated copper sulfate crystals, added it to distilled water and while stirring , added 1 drop of sodium carbonate solution until a precipitate was visible. Then added drops of acetic acid while stirring until the precipitate disappeared.

titrated this with Sodium Thiosulfate solution with a potassium iodide indicator.

now i have all the experimental values of titration etc.. but no idea how to obtain the X (H2O)

thanks in advance for the help

2007-11-19 00:21:25 · 3 answers · asked by DJ-ICE 1 in Chemistry

2007-11-19 00:17:57 · 7 answers · asked by Anonymous in Mathematics

i do not know where to start..i know to calculate pH its teh negative log of the concentration of hydrogen ions, but how do you work out the concentration of hydrogen ions from what is given?

2007-11-19 00:16:55 · 1 answers · asked by fatygurrl 1 in Chemistry

There is a current interest in ethnopharmacology by nurses, physicians, pharmacist and other healthcare providers how does knowledge on ethnopharmacology and cultural differences in response to medications, facilitate your ability to provide culturaly competent and congruent nursing care?

2007-11-19 00:16:42 · 1 answers · asked by PJ 1 in Medicine

i have a problem in chemistry. how do i form compound formulas when an element has variable valencies.
eg: aluminium has valency 2 and 3 how will i know which valency to use
2. can we write ethanol as c2h5oh or ch3cooh.please explain in as much detail and include other web resource

2007-11-19 00:16:03 · 1 answers · asked by Anonymous in Chemistry

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