Science & Mathematics - 6 September 2007

Explain how the heat from the combustion reaction is related to the temperature change of the water.

2007-09-06 12:35:16 · 1 answers · asked by NaimFrasheri 1 in Chemistry

A close friend of mine has told me she regularly takes from 30- 50 2mg Xanax at a time. She is a single mum going through a rough time and I am worried she will OD. She is also taking Prozac and mixing alcohol to the mix to top it off. What can I do to help get her some help, and what would be the physical and/or mental effect this is having on her? Please help...

2007-09-06 12:34:43 · 5 answers · asked by Anonymous in Medicine

A piece of lead having a mass of 104.5 g is placed in an empty graduated cylinder.
35.0 mL of water is then poured slowly and carefully into the same cylinder.The final water level would then indicate the total volume of the materials in the graduated cylinder.
What is this total volume in millileters

2007-09-06 12:34:38 · 1 answers · asked by Anonymous in Chemistry

if you consider the universe a living thing, then why couldnt it just burst like a bubble without anyone knowing,

is that how youd like to go out?

2007-09-06 12:34:16 · 6 answers · asked by ? 2 in Astronomy & Space

that in the far off future, that we could say to each other, we are going on holiday to the moon next year, or to one of the other soler planets, ie mars or jupitor

2007-09-06 12:33:48 · 9 answers · asked by bluebrancall 7 in Astronomy & Space

2007-09-06 12:33:26 · 6 answers · asked by exhausted78 2 in Mathematics

is there a shortcu to do thist? my teacher showed it, but it was at the end of class and i dint see it.

2007-09-06 12:32:56 · 1 answers · asked by Anonymous in Biology

How do you factor:

x² - 36y²

Do you used the greatest common factor method? If so, how and what is the final answer? What is the GCF?

2007-09-06 12:31:33 · 2 answers · asked by S. 4 in Mathematics

I want to use 1 meter long piece of string and a stopwatch, how can i determine my average speed of my walk?

2007-09-06 12:30:01 · 1 answers · asked by Anonymous in Physics

2007-09-06 12:26:46 · 11 answers · asked by <3~Dare2bu~<3 2 in Mathematics

Trying to help my daughter with her homework, but it's been so long I'm not sure if I'm right...

2007-09-06 12:25:27 · 15 answers · asked by hawaiiangidget 2 in Mathematics

Science seems to be so, stuck in research, that the time it takes to actually say something, we have all thought and knew long ago. eg. chemicals in food create imbalance in body. (Todays news item)
What is all the proving needed for. Can "science" not wake up a little bit earlier and listen to intelligence, or does it always have to "prove" it.

2007-09-06 12:24:11 · 4 answers · asked by Astro 5 in Medicine

2007-09-06 12:23:43 · 1 answers · asked by Barnaby 2 in Mathematics

My 13 yr old is currently working on his homework and we are sorta stuck on this problem... (writing it the way it is written)
- 2 - 8.7 =

can someone help explain? Is it negative 2 MINUS 8.7 or negative 2 "plus" negative 8.7? ARG! lol, no one tells you that when you have kids you go back to school all over again... I "so" would have paid more attention! :)

Thank you!

2007-09-06 12:16:53 · 21 answers · asked by Just me 2 in Mathematics

i really dont get how to ..please show me step by step

2007-09-06 12:12:23 · 1 answers · asked by AnswerGirl 2 in Mathematics

the first one is without brackets and the second one has brackets....the squared is one the OUTSIDE of the brackets on the second one

2007-09-06 12:11:52 · 12 answers · asked by Book_Worm #1 1 in Mathematics

16.7 pounds
34.3 pounds
167 pounds
343 pounds

2007-09-06 12:09:49 · 6 answers · asked by notachemwiz 1 in Chemistry

which weighs 4.32 kg?

0.000625 cm3
0.625 cm3
1.60 cm3
1.60 L

2007-09-06 12:08:30 · 1 answers · asked by notachemwiz 1 in Chemistry

Write the balanced equations for these solutions

A.) NaClO + (Na2S2O3 in NaOH) ---->

B.) NaClO + (KI in NaOH) ----->

C.) NaClO + (Na2SO3 in NaOH)

PLease list all the equations, balanced, because i have no idea what the products look like, since the second set of reactions are in sodium hydroxide.

2007-09-06 12:06:44 · 2 answers · asked by shashank 2 in Chemistry

like x to the zero power.
would it just be x or would i cross it out and ignore it?

also if its (xm*-2)*0
what would i do?

THE * MEANS THE NUMBERS ARE AN EXPONENT!

2007-09-06 12:05:03 · 6 answers · asked by Kelly M 1 in Mathematics

2007-09-06 12:04:49 · 2 answers · asked by Anonymous in Astronomy & Space

2007-09-06 12:00:41 · 1 answers · asked by Anonymous in Engineering

2007-09-06 11:59:50 · 2 answers · asked by Anonymous in Mathematics

2007-09-06 11:59:47 · 5 answers · asked by nargis 2 in Medicine

i need to know for a project

2007-09-06 11:51:25 · 5 answers · asked by Playa101 2 in Weather

A solid metal sphere with radius 0.410 m carries a net charge of 0.280 nC.

Find the magnitude of the electric field at a point 0.111 m outside the surface of the sphere.

The internet says my answer is off by an additive constant but I cant figgure out what?

2007-09-06 11:50:17 · 2 answers · asked by frozenlint 2 in Physics

2007-09-06 11:49:46 · 1 answers · asked by Anonymous in Mathematics

What's the furthest you've personally come to comprehending infinity?

I don't mean realizing that's it's not a number...or encompasses everything, a boundless limit , etc, or different kinds of infinity passively

but you know when you think about infinity --and your heart starts to race ....and panic starts to set in


what's the furthest you've gone ....have you ever come to a psychological truth about infinity ....or had a moment of clarity???

2007-09-06 11:49:10 · 5 answers · asked by Anonymous in Mathematics

2007-09-06 11:48:40 · 7 answers · asked by Brett B 1 in Physics

I Need Help PLEASE PLEASE PLEASEEEEEE!

2007-09-06 11:48:29 · 3 answers · asked by BabyDoll 2 in Mathematics