One Primitive Technology That Has Been Utilized for Centuries Is

question 43

Multiple Choice

One primitive technology that has been utilized for centuries is the creation of slaked lime, calcium hydroxide, Ca(OH) ₂ by reaction of calcium oxide, CaO, with water according to the following chemical reaction:
CaO_(s) + H₂O_(l) Ca(OH) _2(s)
Which of the following statements is true regarding the formation of slaked lime:

• A) Water is acting as an acid.
• B) The calcium hydroxide is acting as a base
• C) The calcium oxide and the calcium hydroxide are a conjugate acid/base pair.
• D) This is a buffer system.
• E) None of the above.

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Definitions:

Extraversion

An attribute of someone's character that involves the ability to socialize easily, communicate freely, be proactive, and express emotions vividly.

Awe

An emotional response to witnessing something majestic, grand, or beyond ordinary, often leading to a sense of being overwhelmed in a positive way.

Mindfulness

A mental state achieved by focusing one's awareness on the present moment, often used as a therapeutic technique.

Flow

A mental state of operation in which a person performing an activity is fully immersed in a feeling of energized focus, full involvement, and enjoyment.