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mixas84 [53]
3 years ago
9

Microorganisms and humus have little impact on soil health. Please select the best answer from the choices provided T F

Chemistry
2 answers:
egoroff_w [7]3 years ago
7 0

First of all what the heck to the other guy that answered. And the correct answer is FALSE :))

hram777 [196]3 years ago
6 0

The right answer is false, they have great impact on soil health.

In general, microorganisms play a fundamental role in the fertility of the soil (production of the minerals necessary for the plant: N, P, K, etc.) and the study of their activity is therefore important. In addition, certain bacteria participate in the release and transformation of metals in the soil and thus contribute to increasing or reducing the toxicity of heavy metals (nickel, cobalt, etc.).

Humus is essential in the function of soil production.

Humus is used primarily as a "pantry" for plants, and also plays a vital role in structuring the soil.

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Answer:

It is <u>KEPLER</u>

Explanation:

Kepler defined the sun's orbit.

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2 years ago
Determine the empirical formula for a compound that contains 15.8% carbon and 84.2% sulfer
nydimaria [60]

Answer:

Carbon Disulfide CS2

Explanation:

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2 years ago
The theoretical yield of Cl2 from certain starting amounts of MnO2 and HCl was calculated as 60.25 g and 65.02 g, respectively.
user100 [1]

Answer:

c    43.38 g

Explanation:

The reaction  between MnO2 and HCl can be represented by the following balanced equation:

MnO2 + HCl ---> Cl2 + MnCl2 + H2O

From the balanced equation, the theoretically required molar ratio of MnO2 to HCl is 1:1, therefore the yields would have been expected to be equal.  

For the fact that HCl  gives a higher yield (65.02g) than MnO2 (60.25g) according to the problem statement, HCl should be in excess,  while the limiting reagent should be MnO2 .  

Thus, the theoretical yield of Cl2 will be  60.25 g.

By definition, the percentage yield is given by

% Yield = (Actual Yield) / (Theoretical Yield),  

This can be simplified to

Actual Yield = % Yield * Theoretical Yield

Plugging in the given values we have

Actual Yield = 72% *  60.25 = 43.38 g

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3 years ago
Kamir and Alexis are studying the properties of water. They conducted a variety of experiments to determine its physical and che
ivanzaharov [21]
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