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grigory [225]
3 years ago
13

I need help with science​

Chemistry
1 answer:
BaLLatris [955]3 years ago
6 0

Answer:

what's your questions?

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Aniline (c6h7n) has a pkb = 9.4. what are the dominant species present in water if the ph is held constant at ph = 8?
anzhelika [568]

The dominant species present in water if the ph is held constant at ph = 8 is C_{6}H_{7}N,H_{3}O^{+}.

<h3>What is ph?</h3>

The pH scale is used in chemistry to determine whether an aqueous solution is basic or acidic. Historically, pH stood for "potential of hydrogen." The pH values of acidic solutions are typically lower than those of basic or alkaline solutions.

A solution's pH is a significant indicator of its chemical composition. The pH can affect how readily available nutrients are, how biological processes work, how bacteria behave, and how chemicals behave. The negative log base 10 of the hydronium concentration is used to define pH. The pH is a logarithmic indicator of how many hydrogen ions are present in a solution. Since pH is measured on a log scale, a pH increase of 1 equates to a 10x increase in the concentration of H+ ions.

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What is the difference between an endothermic and an exothermic reaction?
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An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings
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What part of the amino acid varies from one amino acid to another
kykrilka [37]
The <span>R group is the correct answer</span>
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Based on the image below, which item is your limiting reactant?(A) Ice cream scoopB) Cone(C) Cherry
liubo4ka [24]

According to the image, we can say that to form an ice cream unit you need 1 scoop of ice cream, 1 cone, and 1 cherry. In other words, the ratio between all the reactants is 1 to 1. Therefore, the limiting reactant will be the one with the least number of units.

If we count the amount of each of the reactants we have:

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,

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In less quantity are the cones, that is to say, that at most we can assemble 7 ice creams. Therefore, the limiting reactant will be the cone.

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