Which of the Following Equations Best Describes the Reaction That

question 62

Multiple Choice

Which of the following equations best describes the reaction that occurs when potassium metal reacts with oxygen gas in a combination reaction?

• A)K(s)+ O₂(g)→ KO₂(s)
• B)4K(s)+ O₂(g)→ 2K₂O(s)
• C)K(s)+ O₂(g)→ KO(s)+ O(g)
• D)2K(s)+ O(g)→ K₂O(s)
• E)K(s)+ O(g)→ KO(s)

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Definitions:

Cohesion

The degree to which members of a group or team are united in pursuing common goals and how well they bond with each other.

Entitativity

The degree to which a group is perceived as being a coherent entity, distinguished by how closely knit the group members are and the group's common attributes or goals.

Herb Brooks

An American ice hockey player and coach, best known for coaching the 1980 U.S. Olympic hockey team to a gold medal victory.

Cohesiveness

The degree to which members of a group are attracted to and motivated to remain part of that group.