PLEASE PLEASE HELP ME... i begg you

the answer to the first one is B and the second one is that the volume is a control, the heart rates are dependent, the how music played is controlled, how the heart rates are measured is controlled, the music played is independent

i had this on my unit activity, i can you if you are a plato student. are you a plato student?

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