copper (ll) sulfate is a hydrated crystal with the formula CuSO4. 5H2O and a deep blue color . when it is heated the crystals crumble and turn white .
a ,propose an explanation for this change of color
b, what would you do to restore the blue color .

2006-11-15 12:31:04 · 2 answers · asked by henry f 2 in Chemistry

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malpractice information?

and all about it.

2006-11-15 12:30:53 · 3 answers · asked by kim234562002 1 in Medicine

0 ⤊

What blood type is the universal donor?

is it O+ or is it O-?

2006-11-15 12:30:30 · 7 answers · asked by Alex 3 in Biology

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What 3 elements are used to make permanent magnets?

2006-11-15 12:28:54 · 2 answers · asked by LaLo 713 1 in Chemistry

8 ⤊

what is significant of flock of wild turkeys?

2006-11-15 12:26:58 · 10 answers · asked by TODD L 1 in Paranormal Phenomena

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For y=x^3 is y a function of x?

2006-11-15 12:25:33 · 7 answers · asked by Seira T 1 in Mathematics

2 ⤊

chemistry question?

a crystalline material containing 30 g of barium chloride crystals was placed into an oven at 400 centigrade and heated for two ours. it was then cooled and weighted . the new mass was less before it was heated ,contain 20 g of barium chloride . how is this possible ?

2006-11-15 12:25:33 · 2 answers · asked by henry f 2 in Chemistry

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3y=2x+3 ? I need the y=mx+b form of this.?

Can someone tell me what it is when it is in y=mx+b form?
Answers please.

2006-11-15 12:24:10 · 7 answers · asked by Anonymous in Mathematics

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What influences our ability to withstand pain?

I know that some people are able to endure quite a lot, and some of us much less.

It doesn't seem to have to do with sex or build; I'm wondering if anyone has any idea how this can be?

2006-11-15 12:22:41 · 6 answers · asked by silvercomet 6 in Medicine

1 ⤊

Examples of Carnivores?

2006-11-15 12:21:37 · 14 answers · asked by George G 1 in Biology

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What is the molarity of F- in a saturated solution of BaF2?

2006-11-15 12:20:37 · 2 answers · asked by amy B 1 in Chemistry

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When will we use Geometry proofs in life?

2006-11-15 12:20:24 · 13 answers · asked by @ri@n@ c 1 in Mathematics

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Where do babies come from?

2006-11-15 12:20:15 · 13 answers · asked by Anonymous in Weather

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Precipitate question?

if 5.0 * 10^-4 moles of Ba(No3)2 were added to 1.0 L of a
6.0 *10^-3 M solution of NaF, would a precipitate form? Show calculation

2006-11-15 12:19:59 · 2 answers · asked by amy B 1 in Chemistry

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how long does it take to recover power/internet from a tornado?

my girlfriend was in alabama when the tornado hit and I'm wondering how long it will be until they recover power so i can make sure if shes ok or not.

2006-11-15 12:18:37 · 2 answers · asked by bloody doctorine 2 in Weather

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What is the answer for this blank (_____)? Please help me! Thank you! =)?

I don't understand this...

A metal that will replace the ions of another metal in water is a more _____ metal than the metal whose ions are replaced.

Please help me! Thank you! =)

Also, please explain it to me thoroughly so I can learn too!

2006-11-15 12:18:09 · 6 answers · asked by LOVE♥ 1 in Chemistry

1 ⤊

For y=5x^2.... is x a function of y?

2006-11-15 12:14:44 · 7 answers · asked by Seira T 1 in Mathematics

1 ⤊

What's your weather like right now?

We are about to get a cold front and be in the 40's. I live in south texas and anything under 60 degrees is really cold for me.

2006-11-15 12:14:40 · 8 answers · asked by eMMa's MoM 3 in Weather

1 ⤊

3x + y = -2 ?

Graph each equation. [algebra1]

Can you tell me the slope and b?

2006-11-15 12:14:25 · 9 answers · asked by Anonymous in Mathematics

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why are atoms of bromine so reactive?

2006-11-15 12:13:57 · 1 answers · asked by smileyyface 1 in Chemistry

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What Main Events Our Happening In Austrailia?

2006-11-15 12:12:55 · 1 answers · asked by popstar0022 2 in Earth Sciences & Geology

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can u put this vocab. term in ur own words?

thanx..

Terminal Velocity: The constant velocity at which a falling object travels when the size of the upward force of air resistance matches the size of the downward force of gravity.

2006-11-15 12:11:16 · 6 answers · asked by Anonymous in Physics

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more golden rectangle stuff?

does anyone know why the golden rectangle is important?
Also: does anyone know examples of the golden rectangle in music? i can't find any good ones.

2006-11-15 12:11:04 · 2 answers · asked by Bill s 2 in Mathematics

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what are the tiny sharp leafs of a cactus called?

2006-11-15 12:10:13 · 5 answers · asked by JUDY C 1 in Other - Science

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Thermal Expansion Question?? Check my Work Real Fast! Thanks...?

a spherical brass shell has an interior volume of 1.60 x 10^-3 m^3. Within this interior volume is a solid steel ball that has a volume of 0.70 x 10^-3 m^3. The space between the steel ball and the inner surface of the brass shell is filled completely with mercury. A small hole is drilled through the brass, and the temperature of the arrangement is increased by 12 degrees celsius. What is the volume of the mercury that spills out of the hole?

B(brass) = 57 x 10^-6 (degrees celsius)^-1
B(mercury) = 182 x 10^-6 (degrees celsius)^-1
B(steel) = 36 x 10^-6 (degrees celsius)^-1

My Approach:

Change in Velocity = mercury(BVchangeT) - steel(BVchangeT) - brass(BVchangeT)

= (1.6 x 10^-3 - 0.7 x 10^-3)m^3 (182 x 10^-6 celsius^-1)(12 celsius) + (36 x 10^-6 celsius^-1) (0.7 x 10 m^3)(12 celsius) - (1.60 x 10^-3 m^3)( 57 x 10^-6 celsius^-1)(12 celsius)

= 1.17 x 10^ -6 m^3 <----my answer, what do you think?

2006-11-15 12:09:18 · 1 answers · asked by Anonymous in Physics

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