A Pure Substance F Is Found to Change Upon Heating

question 68

Multiple Choice

A pure substance F is found to change upon heating into two new pure substances M and Y. Both M and Y may be decomposed by chemical means. From this we may conclude that:

• A) F is an element, M and Y are compounds.
• B) F is a compound, M and Y are elements.
• C) F, M and Y are all elements.
• D) F, M and Y are all compounds.

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Definitions:

Telegraphic Speech

A stage in language development where children speak in short, simple phrases, often missing grammatical markers.

Pitch

The dimension of auditory experience related to the frequency of a pressure wave; the height or depth of a tone.

Intensity

The degree of strength, force, or energy of something, often used in the context of physical phenomena or emotions.

Symbolic Gestures

Actions performed to convey a specific message or sentiment without the use of words, often culturally defined.