68. Two powders have been mixed together to prepare a nonsterile compound. To ensure the mixture is evenly distributed, it must be:
Answer: A
The mixture must be homogeneous.
A homogeneous mixture ensures that the two powders are evenly distributed throughout the compound, allowing for consistent properties and effects in the final product.
A) homogeneous.
This option is correct because a homogeneous mixture means that the components are uniformly distributed at a molecular level, which is essential for the effective use of the compound. Without homogeneity, the performance of the compound can be inconsistent and unreliable.
B) liquid.
This option is incorrect as the state of matter (liquid) is not a requirement for the distribution of powders. Powders can be mixed to form a homogeneous solid compound as well, so being a liquid does not necessarily pertain to achieving an even distribution.
C) stable.
While stability is important for the longevity and effectiveness of a compound, it does not directly relate to the even distribution of the powders. A stable compound may still be heterogeneous if the powders are not mixed properly.
D) non-hazardous.
This option is incorrect as non-hazardous does not pertain to the distribution of the powders. A non-hazardous compound is important for safety, but it does not ensure that the mixture is homogeneous or evenly distributed.
Conclusion
The necessity for a homogeneous mixture is paramount when preparing a nonsterile compound from two powders, as it guarantees even distribution. Other options such as stability or being non-hazardous do not address the core requirement of uniformity in the mixture, which is essential for the compound's effectiveness.