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Anarel [89]
3 years ago
6

Help please ? Thank you

Chemistry
1 answer:
olasank [31]3 years ago
3 0

Answer:

40J

Explanation:

I think about that why I don't know what is the answer

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What is the boiling point of water at an elevation of 1.55×104 ft ?
horsena [70]
The computation for this problem is:
(1.55x10^4 / 1.0x10^3) x 19.8 mm Hg
= 15.5 x 19.88 mm Hg
= 308.14 mm Hg decrease 
= 308.14 x 0.05 C = 15.407 deg C 
deduct this amount to 100
100 – 15.407 = 84.593 C 
ANSWER: 85 deg C (rounded to 2 significant figures)
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Which of the following compounds is least soluble in water?
hjlf

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2 years ago
How many moles of hydrogen atoms are in 1 mole of sulfuric acid?
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one mole of sulfuric acid will contain 2 moles of hydrogen atoms. The molar mass of sulfuric acid is 98.0795 g/mol. This means that every mole of sulfuric acid has a mass of 98.0795 g. Since you're dealing with one mole of sulfuric acid, it follows that you will also be dealing with two moles of hydrogen.

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3 years ago
Decribe how hydrogen and oxygen form water
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Well, its a very simple process actually. Here is how it works;

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I hope I made your day a little easier,

Have a great day and happy Halloween!

8 0
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