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nikitadnepr [17]
3 years ago
5

Light energy comes from

Chemistry
2 answers:
GaryK [48]3 years ago
4 0

light energy comes from not alot of sleep

Travka [436]3 years ago
3 0

Answer:

The sun

Explanation:

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A certain metal hydroxide, m(oh)2, contains 32.8% oxygen by mass. what is the identity of the metal m? enter the full name of th
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Solution:[tex]Let the molar mass of metal M is 'a',\\ \rn(so)\\ \frac{M_{o}}{2M_{H}+2M_{o}+a}        =\frac{2.16}{2.1+2.16+a} =0.328\\ By simple algebric calculation. We get,\\         a=63.56g/mol\\ \rn(Now,)\\

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3 years ago
Please Help!
eduard
Well they are different widths and and sizes shapes, and so they are  different because of that.
4 0
4 years ago
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A certain amount of gas at 25 C and at a pressure of 0.800 atm is contained in a glass vessel. Suppose that the vessel can with
sp2606 [1]

Answer:

=745 Kelvin

Explanation:

  • According to the pressure law the relationship between the pressure and absolute temperature of a  gas at a constant volume is directly proportional.
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That is;

P\alpha T

Mathematically;

P = kT\\(Constant)k =\frac{P}{T} \\

When there are two varying conditions;

\frac{P1}{T1} =\frac{P2}{T2}

In this case;

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P2 =2.00 atm

T2= ?

Therefore;

T2= \frac{P2T1}{P1}

T2= \frac{(2)(298)}{0.8}

= 745 K

Therefore, the temperature can be raised up to 745 kelvin without bursting vessel.

8 0
3 years ago
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What is the purpose of constructing a calibration curve
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Calibration curves are used to understand the instrumental response to an analyte, and to predict the concentration of analyte in a sample.

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A mole of pennies would fill up how many 32oz cups?
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4 cups?

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