Chlorofluorocarbons rise to the stratosphere and Multiple Choice interact with UV energy to produce free radicals that react with oxygen to create ozone. interact with UV energy to produce free radicals that destroy ozone. react directly with stratospheric ozone to destroy it. react with free radicals to remove carbon dioxide.

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

just did the assignment and the answer was #1 +2 n