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Ksivusya [100]
3 years ago
15

7. Reina is making museum exhibits about two different rock types. How could energy have played a role in the different rock typ

es forming?
Chemistry
1 answer:
Advocard [28]3 years ago
7 0

Answer:

Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces.

Explanation:

Different sources of energy are required in the formation of rocks. A source of energy like the sun is vital in the facilitation of processes pertaining to rock formation that occur on the surface of the earth. Some of these processes include; erosion and weathering.

The internal heat energy from the earth also facilitate rock formation processes that occur at the core of the earth. Some of them include; melting and subduction. So, energy from different sources result to different types of rocks.

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How cobalt can be produced from aqueous cobalt sulphate?<br>​
lisov135 [29]
Using a displacement reaction we can put a more reactive metal into cobalt sulphate of where the more reactive metal (such as zinc, aluminium or magnesium) will displace cobalt out of the solution leaving the elemental form of cobalt metal deposit left in a solution of (whatever metal you chose) sulphate.
4 0
4 years ago
Which one of Newton's Laws fits this statement: More mass means more force needed to accelerate?
ivolga24 [154]

Answer:

Newton's Second Law

Explanation:

Newton's second law basically states that the acceleration of a body which is produced by a net force is directly proportional to the magnitude of net force applied in the same direction.

This tells us that

     F   is directly proportional to a

⇒ F= ma

So we can also state from the above equation, that when we have more mass, we need more net force to accelerate it. Here, we are keeping the acceleration constant so we can surely say that force and mass varies directly.

Therefore, we have made good use of Newton's Second Law of motion to arrive at this conclusion.

4 0
4 years ago
Remember that it takes 2 electrons to form a bond how many bonds does CIO 3 - have, the chlorate ion
ladessa [460]

Answer:

3 bonds

Explanation:

solve this by doing the lewis structure for CIO3

5 0
3 years ago
Read 2 more answers
In an aqueous solution which substance yields hydrogen ions as the only positive ion *
GenaCL600 [577]
The question is incomplete. Complete question is
<span>In an aqueus solution, which substance yields hydrogen ions as the only positive ions in the solution? 1)NaH 2)HCOOH 3)LiOH 4) CH3CH2OH?
.............................................................................................................................
Answer: Correct answer is option 2, HCOOH

Reason: 
HCOOH is a formic acid. When mixed in water, it undergoes dissociation which can be represented as

HCOOH         </span>↔           HCOO-       +            H+

The compound NaH, will generate hydride ion (H-), while LiOH is an ionic compound, hence when dissolved in water it generated OH- ions. The compound CH3CH2OH is named as ethyl alcohol. This compound donot dissociate in aqueous medium. 
7 0
4 years ago
(b) What is the pKa of the dimethylammonium ion, (CH₃)₂NH₂⁺ ?
g100num [7]

The pKa of the dimethylammonium ion, (CH₃)₂NH₂⁺ is 10.7.

<h3>What do we know about  dimethylammonium ion?</h3>

The conjugate acid of dimethylamine, dimethylaminium is an organic cation and a significant species at pH 7.3. It is a secondary aliphatic ammonium ion and an organic cation. It is a dimethylamine conjugate acid.

<h3>What do we understand by pKa?</h3>

In layman's terms, pKa is a measurement of an acid's strength. A strong acid will have a pKa value that is lower than 0. To be more specific, pKa is the Ka value's negative log base ten value (acid dissociation constant). How tightly a proton is retained by a Bronsted acid is how the strength of an acid is measured. The strength of the acid and its capacity to donate protons increase with decreasing pKa values.

To learn more about pKa:

brainly.com/question/13178964

#SPJ4

7 0
1 year ago
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