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nadya68 [22]
3 years ago
8

Please help I will reward Brainly . Thank you for the help in advance

Chemistry
1 answer:
bekas [8.4K]3 years ago
5 0
Usually you just need to give it rest for 6-12 weeks. depending on how large it is surgery may be needed
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In which pair would both compounds have the same empirical formula? A. H2O and H2O2 B. BaSO4 and BaSO3 C. FeO and Fe2O3 D. C6H12
Kazeer [188]
The pair of both compounds that have the same empirical formula are C6H12O6 and HC2H3O2. The answer is letter D. <span>H2O and H2O2, BaSO4 and BaSO3 and FeO and Fe2O3 do not have the same empirical formula.</span>
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Which of the following are parts of the excretory system? *
Kay [80]

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kidney, bladder, rectum, urethera

Explanation:

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The most concentrated solution is
aev [14]
The most concentrated solution is b
6 0
3 years ago
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In a coffee-cup calorimeter, 100.0 g of H2O and 8.70 grams of Na3PO4 are added. The water had an initial temperature of 24.6 oC.
Alex

Answer:

a.) exothermic

b.) 2,800.6 J

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3 0
3 years ago
PLEASE HELP ME<br><br> what would be the mass of 9.03 x 1021 molecules of hydrobromic acid (HBr)?
Nikitich [7]

We know 1 mole of any atom or molecules contains 6.033 \times 10^{23} atom or molecules.

1 mole of HBr i.e 81 gm/mol contains  6.033 \times 10^{23} atom or molecules.

So, mass of 9.03\times 10^{21} molecules is :

m=\dfrac{81\times 9.03\times 10^{21} }{6.033 \times 10^{23}}\\\\m= 1.21\ gm

Therefore, mass of  9.03\times 10^{21} molecules is 1.21 gm .

Hence, this is the required solution.

7 0
3 years ago
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