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Alexeev081 [22]
3 years ago
5

5, the answer is not c , pleaser answer

Chemistry
1 answer:
Tom [10]3 years ago
6 0
I pretty sure that it’s b
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When the pH value of a solution is changed from 2
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increases my factor of 10

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4 years ago
Why is it important to communicate the results of an investigation?
denis-greek [22]

Answer:

Communicating Results

This is a very important step because it allows other scientists to try to repeat the investigation and see if they can produce the same results. When scientists communicate their results, they should describe their methods and point out any possible problems with the investigation.

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4 years ago
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The atomic mass of sulfur is 32.1 amu, and the atomic mass of oxygen is 16.0 amu. To the nearest tenth of a percent, what is the
Zielflug [23.3K]

Answer:

\%\ Composition\ of\ sulfur=40.1\ \%

Explanation:

Percent composition is percentage by the mass of element present in the compound.

Given , Mass of sulfur= 32.1 amu

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Mass of sulfur trioxide SO_3 = 32.1 amu + 3*16.0 amu = 80.1 amu

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6 0
3 years ago
A mixture of 0.220 moles CO, 0.350 moles H2 and 0.640 moles He has a total
emmasim [6.3K]

Answer:

P(H₂) = 0.8533 atm

Explanation:

n(CO) = 0.220 mole

n(H₂)  = 0.350 mole

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_______________

∑ n  =  1.210 moles

mole fraction => X(H₂) = 0.350/1.210 = 0.2892

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3 years ago
The teacher in item 10 also needs to order plastic tubing. If each of the 60 students need 750 mm of tubing, what length of tubi
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45 m. If each student needs 750 mm of tubing, the teacher should order 45 m of tubing.

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b) Convert <em>millimetres to metres </em>

Length = 45 000 mm tubing x (1 m tubing/1000 mm tubing) = 45 m tubing

6 0
3 years ago
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