Answer:
Arrhenius
H, H₃O⁺
OH, OH⁻
Explanation:
The earliest and simplest definition of acids and bases was suggested by <u>Arrhenius</u>. He/They defined an acid as a substance with <u>hydrogen</u> in its formula that dissociates in water to yield <u>H₃O⁺ </u>and a base as a substance with <u>OH</u> in its formula that dissociates in water to yield<u> OH⁻</u>.
Acid:
An acid is the substance that sour in taste and turns the color of litmus paper from blue to red.
pH of acid is less than seven.
Base:
An acid is the substance that bitter in taste and turns the color of litmus paper from red to blue.
The pH of base is 7-14.
Arrhenius gives the simplest definition of acid and base.
Arrhenius acid:
A substance that increase the concentration of hydronium ion in solution is called acid.
HNO₃ → H⁺ + NO₃⁻
(H₂O)
Arrhenius base:
A substance that increase the concentration of OH⁻ ion in solution is called base.
KOH → K⁺ + OH⁻
Higher temperature, more kinetic energy, more space between particles, higher volume
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Answer:
-4.29 x 10^-5, -9.3 x 10^-2, and then the least is -1.370 x 10^6
Explanation:
<h3>-9.3 x 10^-2 = -0.093</h3><h3>-4.29 x 10^-5 = -0.0000429</h3><h3>-1.370 x 10^6 = -1,370,000</h3>
Now use common sense.
-0.093 is the greatest number.
Then -429,000 is in the middle.
Lastly, -1,370,000 is the least number.
<h3>So -0.0000429 > -0.093 > -1,370,000</h3>
Why?
Because as a negative number gets bigger, the more least the number is. It is the opposite of positive numbers. For positive numbers, as a number gets bigger, the more greater the number is. That is a rule.
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Explanation:
When fluorine gas reacts with calcium metal at high temperatures then it results into the formation of calcium fluoride.
Since, calcium has 2 extra electrons as its electronic distribution is 2, 8, 8, 2. Whereas each fluorine atom needs one electron to complete its octet.
Therefore, the chemical reaction equation will be as follows.