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19. Which of the following is a physical property of a substance?

A. Flammability
B. Toxicity
C. Hardness
D. Reactivity

Sagot :

GinnyAnsweridn

Final answer:

Physical properties can be observed or measured without changing a substance's identity. Hardness and flammability are examples of distinct properties.


Explanation:

Physical property of a substance refers to characteristics that can be observed or measured without changing the substance's identity. Hardness is an example of a physical property as it describes how easily a substance can be scratched or dented. In contrast, flammability is a chemical property as it involves the substance's ability to react and burn.


Learn more about Physical and Chemical Properties here:

https://brainly.com/question/1935242


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