Correct Answer: B. rights of shareholders

Correct Answer: B) persists until the environment changes

Explanation

The question is asking about a true climax community. A climax community is a stable and self-sustaining group of plants and animals that live in a particular environment. The question is asking which of the options is true about a climax community. Option A says that a climax community changes from year to year, but this is incorrect. A climax community is stable and doesn't change significantly unless the environment changes. Option B is correct. A climax community persists until the environment changes. This means that the group of plants and animals living in a specific environment will remain relatively stable until something happens to the environment that disrupts the balance. Option C says that a climax community is the first stage in plant succession, but this is incorrect. A climax community is the final stage in plant succession, after a series of changes in the plant community over time. Option D says that a climax community consists of the tallest trees and small animals, but this is incorrect. A climax community can include a variety of plant and animal species, not just the tallest trees and small animals. Option E says that a climax community is in a state of perturbation, but this is incorrect. A climax community is stable, not in a state of perturbation. In summary, the correct answer to the question is Option B. A climax community persists until the environment changes.

Correct Answer: D. 500 000

Correct Answer: B. I and III only

Correct Answer: B. Hg²⁺

Correct Answer: B. Capillary water

Correct Answer: D. paradox

Correct Answer: A. computers

Correct Answer: B)

RCOO\(^-\) + H\(^+\)

Explanation

This Chemistry question is about alkanoic acids and how they ionize in solution. The question is asking what products are formed when alkanoic acids ionize in solution.

Alkanoic acids are weak acids, which means they only partially ionize in solution. When an alkanoic acid ionizes in solution, it forms a negatively charged ion called a carboxylate ion or RCOO\(^-\), and a positively charged hydrogen ion or H\(^+\). Out of the given options, option B is correct. Option B states that alkanoic acids ionize in solution to give RCOO\(^-\) + H\(^+\). This means that the alkanoic acid loses a hydrogen ion, which becomes H\(^+\), and the remaining part of the molecule becomes RCOO\(^-\). Option A is incorrect because it suggests that the alkanoic acid loses an electron to form R\(^+\) and COOH. This is not correct because the alkanoic acid does not lose an electron during ionization. Option C is incorrect because it suggests that the alkanoic acid gains a hydrogen ion to form RCOO\(^+\) and H\(^-\). This is not correct because the alkanoic acid loses a hydrogen ion during ionization. Option D is incorrect because it suggests that the alkanoic acid loses a hydroxide ion to form RCO\(^+\) and OH\(^-\). This is not correct because the alkanoic acid loses a hydrogen ion during ionization, not a hydroxide ion. In summary, when alkanoic acids ionize in solution, they form RCOO\(^-\) and H\(^+\). It is important to understand that alkanoic acids are weak acids and only partially ionize in solution.

Correct Answer: D. Pentane