Two powders have been mixed together to prepare a nonsterile compound. A chemical reaction is likely to have occurred if the resulting mixture is:

Rationale

Liquid.

If the resulting mixture is in a liquid state, it indicates a potential chemical reaction between the two powders. The transformation from solid powders to a liquid mixture often signifies a change in chemical composition due to a reaction taking place.

A (homogeneous.) YOUR ANSWER

Homogeneous refers to a uniform composition throughout the mixture, which can occur without a chemical reaction. Physical mixing of powders can lead to a homogeneous mixture without any chemical changes taking place.

B (liquid.) CORRECT

The formation of a liquid state from solid powders suggests a chemical reaction. Changes in physical state often accompany chemical reactions as new substances with different properties are formed.

C (stable.) YOUR ANSWER

Stability does not directly indicate the occurrence of a chemical reaction. A mixture can be stable even if no chemical reaction has taken place, depending on the nature of the substances involved.

D (non-hazardous.) YOUR ANSWER

The hazard level of a compound is not a definitive indicator of a chemical reaction occurring. Safety considerations are important but do not necessarily reflect the occurrence or absence of a chemical reaction.

Conclusion

Observing the resulting mixture being in a liquid state after mixing two powders suggests the occurrence of a chemical reaction. The change in physical state from solid to liquid implies a potential alteration in chemical composition, indicating a transformation at the molecular level. This shift is a common indicator of a chemical reaction taking place between the powders.

Two powders have been mixed together to prepare a nonsterile compound. A chemical reaction is likely to have occurred if the resulting mixture is:

Liquid.

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