If a Solution Has a PH of 7, This Means

question 5

Multiple Choice

If a solution has a pH of 7, this means that

• A) there are no H⁺ ions in the water.
• B) this is a solution of pure water.
• C) the concentration of H⁺ ions in the water equals the concentration of OH⁻ ions in the water.
• D) this is a solution of pure water, and the concentration of H⁺ ions in the water is 10⁻⁷ M.
• E) this is a solution of pure water, and the concentration of H⁺ ions equals the concentration of OH⁻ ions in the water.

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Definitions:

Pollen Grain

A microscopic body that contains the male reproductive cells of plants; it is capable of fertilizing the female ovule.

Endosperm

The part of a seed that acts as a food store for the developing plant embryo, usually rich in starch or oil.

Developing Embryo

The early stage of growth and development in multicellular organisms, following fertilization and before birth or hatching.

Male Gametophyte

The haploid stage in the life cycle of plants that produces and contains male gametes or sperm cells.