Analysis of an Unknown Substance Showed That It Has a High

question 59

Multiple Choice

Analysis of an unknown substance showed that it has a high boiling point and is brittle. It is an insulator as a solid but conducts electricity when melted. Which of the following substances would have those characteristics?

• A)HCl
• B)Al
• C)KBr
• D)SiF ₄
• E)I ₂

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Definitions:

Communicative Networks

refers to the structures and systems used for communication among individuals or organizations, enabling the exchange of information, ideas, and data.

Community Issues

Challenges or problems that affect the well-being or functioning of a community, ranging from poverty to lack of education.

Involved

Engaged or participating actively in a particular activity or situation.

Complementary Learning

Links between families, early childhood programs, schools, out-of-school-time programs and activities, higher education, health and social service agencies, businesses, libraries, museums, and other community-based organizations that work together to encourage consistent learning and developmental outcomes for children from birth to adolescence.