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Alisiya [41]
3 years ago
15

According to the chart, which substance has the lowest OH- concentration?

Biology
2 answers:
devlian [24]3 years ago
7 0

Answer: B-lemon juice

Explanation:

SVEN [57.7K]3 years ago
6 0

The correct answer is option (B) lemon juice.

pH refers to the logarithmic scale used to indicate the acidity or basicity of an aqueous solution. It is the negative of the base 10 logarithm of the activity of the hydrogen ion. Solutions with a pH less that 7 are considered acidic and the solutions with a pH greater that 7 are considered to be basic. A pH of 7 is neither an acid nor a base and is considered neutral.

An acid has a high concentration of hydrogen ions (H+)  and a base has a low concentration of hydrogen ions. Higher the hydrogen ion concentration, pH is acidic. Among the given substances, lemon juice has a pH of 2, urine has a pH of 6, tomato juice has a pH of 4 and black coffee has a pH of 5.  Since lemon juice has a pH of 2, it has the lowest –OH ion concentration.

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Is water polar or nonpolar​
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Answer:

Polar

Explanation:

A water molecule, because of its shape, is a polar molecule. That is, it has one side that is positively charged and one side that is negatively charged. The molecule is made up of two hydrogen atoms and one oxygen atom. The bonds between the atoms are called covalent bonds, because the atoms share electrons. The hydrogen atoms have one electron each.

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3 years ago
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Answer:

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The basic components of soil are minerals, organic matter, water and air. The typical soil consists of approximately 45% mineral, 5% organic matter, 20-30% water, and 20-30% air. These percentages are only generalizations at best.

Explanation:

8 0
3 years ago
What is the major cause of phytoplankton blooms in the Gulf of Mexico?
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Answer:

Excessive nutrients from fertilizer run off.  

Explanation:

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The bloom detected in the Gulf of Mexico on December 13 might be similarly linked to agricultural run-off.

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3 years ago
During interphase, the genetic material of a typical eukaryotic cell is
luda_lava [24]
During interphase, the genetic material is duplicated.
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3 years ago
Why would you not expect to find any photosynthetic organisms in the aphotic zone of a lake?
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Answer:

There is little to no sunlight in the aphotic zone.

Explanation:

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