Rubbing alcohol or isopropanol can be described by the chemical formula C3H7OH. One milliliter of isopropanol has a mass of 0.76 g, so its density is 0.76 g/mL. Isopropanol is often used as a cleaner or a disinfectant and evaporates when placed on warm objects. However, caution must be taken when using isopropanol, because it is also highly flammable.

Which of the following is a chemical property of isopropanol?

Question

Rubbing alcohol or isopropanol can be described by the chemical formula C3H7OH. One milliliter of isopropanol has a mass of 0.76 g, so its density is 0.76 g/mL. Isopropanol is often used as a cleaner or a disinfectant and evaporates when placed on warm objects. However, caution must be taken when using isopropanol, because it is also highly flammable.

Which of the following is a chemical property of isopropanol?

Vocaloid · Answer

Answer choices (please post these next time)

A. One mL of isopropanol has a mass of 0.76 g. 
B. Isopropanol has a density of 0.76 g/mL. 
C. Isopropanol evaporates when placed on a warm object. 
D. Isopropanol is flammable.

Vocaloid · Answer

It is asking for a *chemical* property. In general chemical properties can be observed when the substance in question undergoes a *chemical* reaction.

Out of the 4 answer choices which property would require a chemical reaction to observe?