Which of the answer choices compares a chemical property of two substances?
A. Gasoline is more flammable than wood.
B. Honey is thicker than water.
C. Iron is harder than gold.
D. Copper reflects more light than lead.
Final Answer:
The correct answer is A: Gasoline is more flammable than wood, as it compares the chemical property of flammability. Other options refer to physical properties such as viscosity, hardness, and reflectivity. Chemical properties like flammability indicate how one substance may interact or react with another.
Explanation:
To compare chemical properties, we look at how substances interact with others during a chemical change. Among the options given, we can analyze them as follows:
A. Gasoline is more flammable than wood.
This statement addresses flammability, which is a chemical property that indicates how readily a substance can undergo combustion.
B. Honey is thicker than water.
This statement is a comparison of viscosity, which is a physical property referring to the thickness or resistance to flow of a liquid.
C. Iron is harder than gold.
This statement compares hardness, which is also a physical property indicating how resistant a material is to deformation.
D. Copper reflects more light than lead.
This statement involves light reflection, a physical property related to appearance.
Based on these evaluations, the correct choice is A, as it compares a chemical property (flammability) between gasoline and wood. Chemical properties such as flammability describe how a substance can change or react under certain conditions.
Examples & Evidence:
For instance, when we say that gasoline is more flammable than wood, we mean that gasoline readily ignites and burns, showing its chemical reactivity. In contrast, honey’s thickness doesn’t change its chemical structure regardless of how thick or thin it is, thus remaining a physical property.
Evidence that flammability is a chemical property can be seen in its definition: it describes the ability of a substance to ignite and sustain combustion, which is a transformative chemical process.
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