Science & Mathematics - 1 February 2007

2007-02-01 07:12:26 · 4 answers · asked by truckin1037 1 in Chemistry

Ok here we go!
When aqueous silver nitrate reacts with aqueous sodium chromate, soluble sodium nitrate forms and silver chromate precipitates out of solution.

a. Write the balanced molecular equation for this reaction.

b. Write the balanced complete ionic equation for this reaction?

c. What are the spectator ions in this reaction?

d. Write the net ionic equation for this reaction.

2007-02-01 07:12:22 · 3 answers · asked by Tracey Lee ♥ 2 in Chemistry

Respected/Dear Mathematical friends, I'm not dealing with mathematics hence poor in it. I got a book in which a square with 4 rows and 4 columns are drawn saying that totally they count 30. I'm not getting more than 26 by counting. Is there any formula or method to count or any trick? Please help this poor mathematical friend or your student.

2007-02-01 07:12:09 · 7 answers · asked by Vertiiical Axiiis 2 in Mathematics

2007-02-01 07:12:02 · 1 answers · asked by heather c 1 in Mathematics

What's the differnece? Are the following covalent or ionic bonds? I put what i think is the answer beside it
1)Lactose (C12H22O11) Covalent?
2)Fructose (C6H12O6) Covalent?
3) Citric Acid (C6H8O7) Covalent?
4) Potassium Iodide (KI) Ionic?
5) Sodium Chloride (NaCl) Ionic?
6) Calcium Chloride (CaCl2) Ionic?
7) Tap water Ionic?
8) Distilled (pure) water Covalent?

Thank you! By the way, this isn't for homework!

2007-02-01 07:11:29 · 2 answers · asked by Anonymous in Chemistry

I was diagnosed with adenocarcinoma in the esophagus. They did some fine-needle procedures to scrape it out and for the last 15 months of biopsys every 3 months, there have been no more cells found. My last biopsy shows they found squamous cells. These are precancerous cells. I was wondering if anyone has heard of getting a few chemo treatments for this? Or do I just have to wait and see what happens?

2007-02-01 07:11:19 · 3 answers · asked by Anonymous in Medicine

Al said, "Betty did it."
Betty said, "Don did it."
Carl said, "I didn't do it."
Don said, "Betty lied when she said I did it."

Who did it?

2007-02-01 07:11:16 · 7 answers · asked by lexiandlogansmammy 1 in Mathematics

2007-02-01 07:11:13 · 10 answers · asked by goring 6 in Astronomy & Space

2007-02-01 07:11:01 · 4 answers · asked by Anonymous in Biology

2007-02-01 07:10:47 · 6 answers · asked by face of revenge 2 in Medicine

2007-02-01 07:09:10 · 1 answers · asked by Q 1 in Engineering

what is the science that studies rocks and stones

2007-02-01 07:08:01 · 6 answers · asked by hassan 1 in Earth Sciences & Geology

The demand equation for a certian type of printer is given by

D = -200p + 35,000

The supply equation is predicted to be

S = -p^2 + 400p - 20,000

I need to find the equilibrium price ?????

2007-02-01 07:07:24 · 3 answers · asked by CookFrNW 3 in Mathematics

How long do they stay in your system? Would they show up in a urine test? Do they even test for them/are they even testable?

Also, if you know anything about "salvia", its legal, but do they test for it in a urine test/could it possibly be confused with marijuana?

2007-02-01 07:07:24 · 2 answers · asked by Anonymous in Botany

can anyone explane why we have leap years and how did it start and why is it in Feb.?

2007-02-01 07:07:16 · 6 answers · asked by Anonymous in Mathematics

Still running into problems with logarithms!

If log*base 2* (x) = a

Then how would I show that log*base 2* (16x) = 4+a ?

And that log*base 2* (x^4 / 2) = 4a-1

2007-02-01 07:06:41 · 4 answers · asked by will t 2 in Mathematics

i've posted a question about what i should do for a science fair. well i found out what i was going to do. so here i am in class searching for stuff on it. so why does cold air sink and why does hot air rise. make it simpleto understand, i'm 11.

2007-02-01 07:06:04 · 14 answers · asked by Elyssa Jo 3 in Earth Sciences & Geology

2007-02-01 07:04:31 · 7 answers · asked by juliexwinters 1 in Mathematics

2007-02-01 07:03:41 · 9 answers · asked by tashyshort 1 in Other - Alternative

What percentage (%) of their daily basal metabolic rate have they ingested ?

How long would it take, in minutes, for the person in the above question to walk off all the calories in the two brownies ? Walking requires energy equal to 2.5 times the basal metabolic rate.

Do NOT consider the energy needed to digest, absorb, and metabolize the snack itself, which the text describes as 10% of the ingested amount of food. Use the total amount of the energy in the two brownies in your calculation

2007-02-01 07:03:03 · 3 answers · asked by Beth F 1 in Chemistry

find the general solution :

dy/dt = (2^y)*(sin t)^2

2007-02-01 07:02:27 · 1 answers · asked by Anonymous in Mathematics

What physical property of copper makes it suitable for pans?
Does it react with dilute mineral acids like hydrochloric acid? Explain your answer.
Does it float on water? Explain your answer

2007-02-01 07:00:43 · 2 answers · asked by mbchelsea 1 in Chemistry

This is a math problem lets say there are 10,000 saylors on a ship in the middle of the ocean. if they all line up around the out side of a ship and are numberd 1 thru 10,000 if they push the first person off then every other person till it goes all the way around, and they keep goin around till they get to the last person what would be the last persons number?

2007-02-01 06:59:25 · 11 answers · asked by Anonymous in Mathematics

when scientists say a star is 6000 light years away, how do they measure it? i mean, wouldn't it take a laser beam 12000 years to make the round trip so they could measure it?

2007-02-01 06:58:04 · 8 answers · asked by jeffrey m 4 in Astronomy & Space

2007-02-01 06:57:53 · 4 answers · asked by howaboutya1979 2 in Engineering

2007-02-01 06:57:44 · 5 answers · asked by Angie 1 in Chemistry

2007-02-01 06:57:27 · 4 answers · asked by goth :) 1 in Physics

2007-02-01 06:57:16 · 7 answers · asked by Kayla R 1 in Geography

2007-02-01 06:54:42 · 14 answers · asked by loop h 1 in Mathematics

2007-02-01 06:52:27 · 2 answers · asked by aa_bb1419 1 in Engineering