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77julia77 [94]
3 years ago
9

Most animals that live in soil live in the _______ layer.

Chemistry
2 answers:
labwork [276]3 years ago
8 0

Answer:

Living organisms present in soil include archaea, bacteria, actinomycetes, fungi, algae, protozoa, and a wide variety of larger soil fauna, including springtails, mites, nematodes, earthworms, ants, insects that spend all or part of their life underground, and larger organisms such as burrowing rodents.

Explanation:

mario62 [17]3 years ago
5 0

Answer:

the answer is top soil

Explanation:

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Write down the group numbers for carbon,oxygen,nitrogen and sulphur <br>​
Bess [88]

Answer:

Carbon - 14

Oxygen - 16

Nitrogen - 15

Sulphur - 16

Explanation:

The question above is related to the "Periodic Table of Elements" which shows the proper arrangement of elements in a table. Every element falls on a<em> group/family</em> within the table. Each group has its own number, and the table has a total of<u> 18 groups</u><em> (from left to right). </em>They are classified according to <em>similarities in their characteristics</em>. For example, group 1 is composed of <em>alkali metals</em> while group 2 is composed of<em> alkali earth metals</em>.

5 0
3 years ago
There are two stereoisomers of 1-tert-butyl-4-chloro-cyclohexane. One of these isomers reacts with sodium ethoxide in an E2 reac
Naily [24]

Answer:

Explanation:

Answer:

<u>cis-</u>isomer reacts faster

Explanation:

The missing diagrams in the question are attached in the first image below and the isomers that react faster are shown in the second image attached.

The <u>cis-</u>isomer quickly follows E2 reaction due to the fact that it is locked in a chair conformation whereby chlorine dominates an <u>axial </u>position, as displayed in drawing <u>C </u>as well as the leaving group <u>Cl</u> which is antiperiplanar to a beta proton.

Due to the bulkiness of tert-butyl, the<u> trans-</u>isomer is Basically trapped in a chair configuration, with chlorine occupying an <u>equatorial</u> position as displayed in drawing <u>A</u> below, thus leaving the group isn't antiperiplanar to a beta proton.

Tert butyl favors an equatorial position due to its bulkiness. This makes the Cl to assume an axial position in an isomer

The difference:

From the second image attached below, in the first diagram(1):

Suppose H is antiperiplanar, C-H bond electrons reach antibonding orbitals of C-Cl, assisting in the breakdown of the C-Cl bond and therefore speeding up the process.

From the second diagram(2) in the second image:

Unless Cl is in the axial position would it have β-hydrogen in the antiperiplanar position. Because tert-butyl prefers equatorial location, the Cl occupies equatorial position in the trans isomer.

As a result, the reaction is slower and there is no β-hydrogen antiperiplanar to Cl.

8 0
3 years ago
Compare and contrast magma and lava
motikmotik
Magma and lava are words that are used in relation to rock formation. Magma refers to melted rock, that is rock in liquid form, which is found in the earth's crust. The lava on the other hand to the magma which has escaped from the earth crust and has moved to the surface via volcano vent. Thus. magma and lava both refer to molten rock, but magma refers to the molten rock that is found underneath the earth while lava refer to the molten rock that is found on the earth surface; that is the difference between them.
3 0
4 years ago
0.005 molar Ca(OH)2 solution is used in the titration.calculate the pH oh solution
Rus_ich [418]

Ca(OH)₂: strong base

pOH = a . M

a = valence ( amount of OH⁻)

M = concentration

Ca(OH)₂ ⇒ Ca²⁺ + 2OH⁻ (2 valence)

so:

pOH = 2 x 0.005

pOH = 0.01

pH = 14 - 0.01 = 13.99

6 0
3 years ago
If 250. ML of water are poured into the measuring cup, the volume reading is 8.45 oz . This indicates that 250. ML and 8.45 oz a
Tamiku [17]

Answer:

1oz=29.589ml

Explanation:

From the question we are told that:

Initial Volume v_1=250ml

Final Volume v_2=8.45oz

Generally the equation for one ounce is mathematically given by

 1oz=\frac{v_1}{v_2}

Therefore

 1oz=\frac{250}{8.45}

 1oz=29.589ml

7 0
3 years ago
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