Answer: All are correct except for "carries energy only through matter
Explanation: E2020
Option (B) is the right answer.
Hydronium ion (
) concentration decreases by the <u>factor of 100</u>, if the pH of a solution increases from 2.0 to 4.0.
<h3>What is pH?</h3>
The hydrogen ion concentration in water is expressed by pH. Specific to aqueous solutions, pH is the <u>negative logarithm</u> of the hydrogen ion (H+) concentration (mol/L) : ![pH = -log_{10}[H_{3}O^{+} ]](https://tex.z-dn.net/?f=pH%20%3D%20-log_%7B10%7D%5BH_%7B3%7DO%5E%7B%2B%7D%20%20%5D)
Acidic solutions are those with a pH under 7, and basic solutions are those with a pH over 7. At this temperature, solutions with a pH of 7 are neutral (e.g.<u> pure water</u>). The pH neutrality <u>relies on temperature, falling below 7 if the temperature rises above 25 °C</u>.
<h3>Given: </h3>
pH1( initial pH) = 2.0
pH2( initial pH) = 4.0
[H3O+] = initial hydronium concentration
[H3O+]* = final hydronium concentration
<h3>Formula used : </h3>
![pH = -log_{10}[H_{3}O^{+}]](https://tex.z-dn.net/?f=pH%20%3D%20-log_%7B10%7D%5BH_%7B3%7DO%5E%7B%2B%7D%5D)
<h3>Solution: </h3>
![pH = - log_{10}[H_{3}O^{+}] \\\\= > 10^{-pH} = [H_{3}O^{+}] \\\\similarly, \\\\10^{-pH} = [H_{3}O^{+}]*\\\\ = > 10^{-4} = [H_{3}O^{+}]*\\\\Now, \frac{[H_{3}O^{+}]*}{[H_{3}O^{+}]} = 10^{-2}](https://tex.z-dn.net/?f=pH%20%3D%20-%20log_%7B10%7D%5BH_%7B3%7DO%5E%7B%2B%7D%5D%20%5C%5C%5C%5C%3D%20%3E%2010%5E%7B-pH%7D%20%3D%20%5BH_%7B3%7DO%5E%7B%2B%7D%5D%20%5C%5C%5C%5Csimilarly%2C%20%5C%5C%5C%5C10%5E%7B-pH%7D%20%3D%20%5BH_%7B3%7DO%5E%7B%2B%7D%5D%2A%5C%5C%5C%5C%20%3D%20%3E%2010%5E%7B-4%7D%20%3D%20%5BH_%7B3%7DO%5E%7B%2B%7D%5D%2A%5C%5C%5C%5CNow%2C%20%5Cfrac%7B%5BH_%7B3%7DO%5E%7B%2B%7D%5D%2A%7D%7B%5BH_%7B3%7DO%5E%7B%2B%7D%5D%7D%20%20%3D%2010%5E%7B-2%7D)
Thus , the concentration of hydronium ion decreases by 100.
To learn more about pH :
brainly.com/question/15289741
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In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed, the change is called a chemical change. A chemical reaction is a mechanism that takes place when two or more molecules interact to produce new products. A reaction between two atoms or ions or molecules may take place and a new bond is formed and no atom is destroyed or created, but reactants form a new substance.
True ^_^
<em>The</em><em> </em><em>right</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em><u>Proton</u></em><em><u>.</u></em>
<em><u>Additional</u></em><em><u> </u></em><em><u>Information</u></em><em><u>:</u></em>
<em><u>There</u></em><em><u> </u></em><em><u>are</u></em><em><u> </u></em><em><u>three</u></em><em><u> </u></em><em><u>types</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>subatomic</u></em><em><u> </u></em><em><u>particles</u></em><em><u>.</u></em><em><u> </u></em><em><u>They</u></em><em><u> </u></em><em><u>are</u></em><em><u>:</u></em>
- <em><u>Proton</u></em>
- <em><u>Electron</u></em>
- <em><u>Neutron</u></em>
<em><u>Proton</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em><u>positively</u></em><em><u> </u></em><em><u>charged</u></em><em><u> </u></em><em><u>particle</u></em><em><u>,</u></em><em><u>Electron</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>negatively</u></em><em><u> </u></em><em><u>charged</u></em><em><u> </u></em><em><u>particle</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>Neutron</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>charge</u></em><em><u> </u></em><em><u>less</u></em><em><u>.</u></em>
<em><u>Hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>will</u></em><em><u> </u></em><em><u>be</u></em><em><u> </u></em><em><u>helpful</u></em><em><u> </u></em><em><u>to</u></em><em><u> </u></em><em><u>you</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
Answer:
Explanation:For example, you are in a bus and it goes with the velocity of 50 m/s to the east, then a truck passes you with a velocity of 60m/s to the east. ... Velocity of the moving objects with respect to other moving or stationary object is called “relative velocity” and this motion is called “relative motion”