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melamori03 [73]
3 years ago
11

A layer of sediment goes through a series of steps on its way to becoming sedimentary rock. These steps are summarized below. Re

ad the steps carefully, and then place them in the correct order. The sediment is gradually buried and compacted. The sediment is deposited by wind, flowing water, or other natural processes. Dissolved minerals completely cement the sediment together.
Chemistry
2 answers:
stiks02 [169]3 years ago
5 0

Explanation:

The steps involved in formation of a sedimentary rock are placed in the correct order as follows.

Step 1: The sediment is deposited by wind, flowing water, or other natural processes.

Step 2: The sediment is gradually buried and compacted.

Step 3: Dissolved minerals completely cement the sediment together.

As a result, it leads to the formation of a sedimentary rock.

Reil [10]3 years ago
4 0

Yea................

eggs dee;))))))))))))))

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There are two valence electrons in a single atom of magnesium.
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A sample of matter was given the following description: The sample of the pure substance is blue in color with an octahedral sha
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Answer:

A crystalline solid

Explanation:

Most solids form with a regular arrangement of their particles because the overall attractive interactions between particles are maximized, and the total intermolecular energy is minimized, when the particles pack in the most efficient manner. The regular arrangement at an atomic level is often reflected at a macroscopic level.  Liquids dont use to have this kind of arrangements or shapes.

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5. What concentration of acid must be added to change the pH of 1 mM phosphate buffer from 7.4 to 7.3 (pKas of the phosphate buf
mr_godi [17]

Explanation:

According to the Henderson-Hasselbalch equation, the relation between pH and pK_{a} is as follows.

               pH = pK_{a} + log \frac{base}{acid}

where,     pH = 7.4 and pK_{a} = 7.21

As here, we can use the pK_{a} nearest to the desired pH.

So,      7.4 = 7.21 + log \frac{base}{acid}

             0.19 = log \frac{base}{acid}

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1 mM phosphate buffer means [HPO_{4}] + [H_{2}PO_{4}] = 1 mM

Therefore, the two equations will be as follows.

           \frac{HPO_{4}}{H_{2}PO_{4}} = 1.55 ............. (1)

  [HPO_{4}] + [H_{2}PO_{4}] = 1 mM ........... (2)        

Now, putting the value of [HPO_{4}] from equation (1) into equation (2) as follows.

             1.55[H_{2}PO_{4}] + [tex][H_{2}PO_{4}] = 1 mM

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Putting the value of [H_{2}PO_{4}] in equation (1) we get the following.

                     0.392 mM + [HPO_{4}] = 1 mM

                          [HPO_{4}] = (1 - 0.392) mM

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Thus, we can conclude that concentration of the acid must be 0.608 mM.

7 0
3 years ago
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Explanation:

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