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nadezda [96]
3 years ago
8

Which material gives the soil its high fertility?

Chemistry
1 answer:
Anuta_ua [19.1K]3 years ago
8 0

Answer:

Explanation:

The surface soil, or topsoil layer (O and A horizon in Figure 1–2), usually contains less clay, but more organic matter and air, than the lower soil layers. Topsoil is usually more fertile than the other layers and has the greatest concentration of plant roots.

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1. You may "feel" cold when you touch certain kinds of matter because​
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A sample of Hydrogen gas has a volume of 25.5 liters at a pressure of 15.0 kPa. If the temperature is kept constant and the pres
patriot [66]

Answer:

<h2>7.65 litres </h2>

Explanation:

The new volume can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

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We have

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We have the final answer as

<h3>7.65 litres </h3>

Hope this helps you

5 0
3 years ago
The mineral stibnite, antimony(III) sulfide, is treated with hydrochloric acid to give antimony(III) chloride and hydrogen sulfi
jeka94
The balanced chemical reaction is written as:

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We are given the amount of </span><span>antimony(III) sulfide to be used in the reaction. This is amount will be used for the calculations. We do as follows:

2.85 g Sb2S3  ( 1 mol / </span><span>339.715 g ) ( 6 mol SbCl3 / 1 mol Sb2S3 ) (</span> 228.13 g / mol ) = 11.48 g SbCl3
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When 2-bromo-2-methylbutane is treated with a base, a mixture of 2-methyl-2-butene and 2-methyl-1-butene is produced. When potas
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Answer:

The percentage mixture of 2-methyl-1-butene would be in between the 45% and 70%.

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3 years ago
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