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Trava [24]
2 years ago
14

Lenses are made to have different focal points. What two properties of a lens

Chemistry
1 answer:
Novay_Z [31]2 years ago
3 0
The correct answer is letter C
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what? that's 66 total, 6 more elliptical machines, a 1 to 1.2 ratio

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Which best describes an element? A pure substance. A type of a mixture. A pure compound. An impure substance.
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A sample of air was collected on a day when the total atmosphere pressure was
zhuklara [117]

Answer:

1. The gas law used: Dalton's law of partial pressure.

2. Pressure of nitrogen = 331 mmHg

Explanation:

From the question given above, the following data were obtained:

Total pressure (Pₜ) = 592 mmHg

Pressure of Oxygen (Pₒ) = 261 mmHg

Pressure of nitrogen (Pₙ) =?

The pressure of nitrogen in the sample can be obtained by using the Dalton's law of partial pressure. This is illustrated below:

Pₜ = Pₒ + Pₙ

592 = 261 + Pₙ

Collect like terms

592 – 261 = Pₙ

331 = Pₙ

Pₙ = 331 mmHg

Therefore, the pressure of nitrogen in the sample is 331 mmHg

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What is a liquid mixture whose parts are evenly blended?.​
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Homogeneous mixture
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