Analysis of an Unknown Substance Showed That It Has a Moderate

question 27

Multiple Choice

Analysis of an unknown substance showed that it has a moderate melting point and is a good conductor of heat and electricity in the solid phase. Which of the following substances would have those characteristics?

• A)NaCl
• B)Si
• C)CCl ₄
• D)I ₂
• E)Ga

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Definitions:

Delayed Development Indicator

A sign or measure that suggests a slower than typical progress in physical, emotional, or intellectual growth in children.

Intellectual Disability

A condition characterized by significant limitations in intellectual functioning and in adaptive behavior, which covers a range of everyday social and practical skills.

Moderate

Not extreme or excessive; average in amount, intensity, quality, or degree.