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Oxana [17]
3 years ago
11

In general, life needs to maintain a pH level between 01-4 5-8 9-14

Chemistry
1 answer:
aalyn [17]3 years ago
3 0

Answer:

5-8

Explanation:

To answer the question we need to know that;

  • A pH of 1-6 is said to be acid with 1-3 being strongly acidic, while a pH of 8 to 14 is said to be basic with 12-14 being strongly acidic.
  • Many living organisms or life systems tend to operate at a neutral pH.
  • Neutral pH is the pH of 7 or close to 7.
  • In this case, the pH of between 5 and 8 is fairly neutral.
  • Extreme pH such as very acidic pH and very basic pH would be hostile to body systems of most living organisms.
  • Therefore, life needs to maintain an almost neutral pH of 5 to 8.
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Answer:

Fundamental properties of atoms including atomic number and atomic mass. The atomic number is the number of protons in an atom, and isotopes have the same atomic number but differ in the number of neutrons.

Explanation:

Fundamental properties of atoms including atomic number and atomic mass. The atomic number is the number of protons in an atom, and isotopes have the same atomic number but differ in the number of neutrons.

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Whats the molar mass of tetraphosphorus decoxide
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In a process called photosynthesis, plants use carbon dioxide and water, along with energy from sunlight, to produce sugar and o
Alex Ar [27]

24 molecules of H2O are needed by the plant to produce 4 molecules of sugar.

<h2>What is photosynthesis?</h2>

The process by which plants convert carbon dioxide, water, and sunlight into oxygen and sugar-based energy is known as photosynthesis.

<h3>The photosynthesis equation is as follows:</h3>

                   6CO2 + 6H2O + Sunlight → C6H12O6 + 6O2

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Therefore, a plant needs four molecules of H2O and four molecules of CO2 to make one molecule of glucose or sugar, hence a plant needs 24 molecules of H2O and 24 molecules of CO2 to make four molecules of sugar.

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Suppose a solution is described as concentrated. Which of the following statements can be concluded? Select the correct answer b
Novosadov [1.4K]

Answer:

  • last option: none of<u> the above.</u>

Explanation:

Describing a solution as<em> concentrated</em> tells that the solution has a relative large concentration, but it is a qualitative description, not a quantitative one, so this does not tell really how concentrated the solution is. This is, the term concentrated is a kind of vague; it just lets you know that the solution is not very diluted, but, as said initially, that there is a relative large amount (concentration) of solute.

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From above, there is no way that you can conclude whether a solution is supersaturated or not from the statement that a solution is concentrated, so the answer is<u> none of the above</u>.

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