Anna Is Conducting an Experiment Using a PH Indicator That

question 3

Multiple Choice

Anna is conducting an experiment using a pH indicator that is red at low pH, green at neutral pH and purple at high pH. She starts with a green solution. When she adds compound X to her solution it turns purple. Then she adds compound Z to the solution and it turns green. She adds more Z, the solution remains green. These observations suggest X is ________ and Z is ________.

• A) a base; a buffer
• B) an acid; a base
• C) a base; a strong acid
• D) an acid; a buffer
• E) a buffer; a base

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Definitions:

Concessions

Compromises made in negotiations where one party gives up certain demands or conditions.

Good Faith

Good Faith involves engaging in actions or negotiations with honesty, integrity, and sincerity without any intention to deceive or defraud.

Increasing Resources

The act of adding more resources such as time, money, or manpower to a project or work environment to enhance productivity or efficiency.

Precise Rules

Clearly defined and strict guidelines or regulations that must be followed to ensure a certain outcome or maintain order.