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Oksanka [162]
3 years ago
10

The diagram below shows Earth, four different positions of the Moon, and the direction of incoming sunlight.

Chemistry
1 answer:
Allisa [31]3 years ago
7 0

Answer:

im 99% sure its 2

Explanation:

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How many liters of nitrogen would be needed to react with 93.0 liters of hydrogen using the balance
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7NH

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Find the ratio of the effusion rate of hydrogen gas to the effusion rate of krypton gas.
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This problem could be solved through the Graham’s law of effusion (also known as law of diffusion). This law states that the ratio of the effusion rate of the first gas and effusion rate of the second gas is equivalent to the square root of the ratio of its molar mass. Thus the answer would be 0.1098. 

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2 years ago
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6 0
2 years ago
Will mark branliest. Calculating percent yield: For the reaction Cu + 2AgNO3 → Cu(NO3)2 + 2 Ag, adding 127 grams of copper to lo
pishuonlain [190]

Percent yield = (Actual Yield/ Theoretical Yield) x 100

Given, Actual Yield of silver = 410 grams

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Moles of copper = 127 g/ 63.546 amu = 1.998 mol

Based on the given balanced chemical reaction, the molar ratio between Cu: Ag is 1:2

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8 0
3 years ago
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