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Bad White [126]
3 years ago
15

(13 POINTS + BRAINLIEST) On a hot and windy day a farmer is cleared all the grasses from a field next to a stream in order to pl

ant some crops. He worked all day removing the grasses, and planting seeds for his next crop. The next day the farmer noticed that half of his field had eroded away. What choice below best describes why the river was able to erode so much of the field?
A.
The wind blew the freshly cleared dirt in the field away.

B.
The river was eroded the ground since the grasses and roots were removed.

C.
Animals dug into the freshly cleared dirt looking for food.

D.
The hot temperatures caused the ground to crack and fall apart.
Chemistry
2 answers:
Bogdan [553]3 years ago
8 0

Answer:

b

Explanation:

the grass and roots hold the soil in place

lutik1710 [3]3 years ago
5 0

Answer:

B, The river was eroded the ground since the grasses and roots were removed.

Explanation:  when you have roots in the ground they would soak up the water but because he removed the roots, The water goes where it used to and it eroded the ground.

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Solid mercury(II) oxides(s) breaks down when heated, forming the elements mercury(l) and oxygen(g).
kherson [118]

Explanation:

2HgO ----∆---> 2Hg + O2

THAT'S THE EQUATION

8 0
3 years ago
Changing the pressure of a system has the highest effect on a substance in which phase?
GuDViN [60]
The best answer to the question presented above would be letter a. Changing the pressure of a system has the highest effect on a gaseous phase. Solids and liquids under pressure make little difference, while gas molecules have many behaviors due to change in pressure.
3 0
3 years ago
What is the pH of a 2.58 x 10^-6 M solution of an acid?
laila [671]

Answer:

<h2>5.59 </h2>

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ {H}^{+} ]

From the question we have

ph =  -  log(2.58 \times  {10}^{ - 6} )  \\  = 5.58838

We have the final answer as

<h3>5.59</h3>

Hope this helps you

7 0
3 years ago
Calculate the ph of a solution formed by mixing 200.0 ml of 0.30 m hclo with 300.0 ml of 0.20 m kclo. the ka for hclo is 2.9 × 1
velikii [3]
C(HClO) = 0,3 M.
<span>V(HClO) = 200 mL = 0,2 L.
n(HClO) = </span>c(HClO) · V(HClO).
n(HClO) = 0,06 mol.<span>
c(KClO</span>) = 0,2 M.
<span>V(KClO) = 0,3 L.
n(KClO) = 0,06 mol.
V(buffer solution) = 0,2 L + 0,3 L = 0,5 L.
ck</span>(HClO) = 0,06 mol ÷ 0,5 L = 0,12 M.
cs(KClO) = 0,06 mol ÷ 0,5 L = 0,12 M.<span>
Ka(HClO</span>) = 2,9·10⁻⁸.<span>
This is buffer solution, so use Henderson–Hasselbalch equation: 
pH = pKa + log(cs</span> ÷ ck).<span>
pH = -log(</span>2,9·10⁻⁸) + log(0,12 M ÷ 0,12 M).<span>
pH = 7,54 + 0.
pH = 7,54</span>
6 0
4 years ago
Which is the electron configuration of an atom in the ground state?
faltersainse [42]
D) 1s22s22p63s1 is the correct answer. 

As we all know, there are no more than 2 electrons in the s-orbital, no more than 6 electrons in the p-orbital. In order to move to another orbital, you have to fully fill electrons in one orbital, then move to the next one.

Hope this helps~


3 0
4 years ago
Read 2 more answers
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