Which of the Following Cannot Be Separated into Simpler Substances

question 61

Multiple Choice

Which of the following cannot be separated into simpler substances by chemical means?

• A) Element
• B) Emulsion
• C) Compound
• D) Homogeneous mixture
• E) Heterogeneous mixture

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Definitions:

Random Assignment

A method used in experiments that allocates participants to different groups purely by chance, reducing bias.

Matched Groups

This involves forming groups in a study that are similar on certain characteristics to ensure comparability when exploring the effects of an intervention.

Non-Experimental Design

A research format that lacks the manipulation of independent variables or random assignment of participants to groups.

Qualitative Research

Research that explores phenomena through non-numerical data, focusing on meanings, concepts, characteristics, and descriptions.