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galina1969 [7]
3 years ago
14

Wich contains more humus topsoil or subsoil on number 18.

Chemistry
1 answer:
Nitella [24]3 years ago
6 0
Topsoil  because  plants and decaying animals add more humus to the soil
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2 years ago
Gold has a density of 19.32 is this a chemical change or physical change
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A 10-liter container has 2 moles of oxygen at a pressure of 92 kpa. The effective speed (rms) of the oxygen molecules in the gas
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The effective speed (rms) of the oxygen gas is 293.68 m/s.

<h3></h3><h3>What is Root-mean-square velocity?</h3>

Root mean square velocity is the square root of the mean of squares of the velocity of individual gas molecules

v_{rms}=\sqrt[]{\frac{3RT}{M} }

<em>where </em>R = universal gas constant

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Learn more about Root-mean-square velocity:

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A reaction was performed, and the dichloromethane solvent was dried by adding magnesium sulfate drying agent. When the reaction
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There are several information's already given in the question. Based on those information's, the answer can be easily deduced.
Amount of gasoline required by Harry's car to travel 25 miles = 1 gallon
Then
amount of gasoline required
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2 years ago
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