Compare the value in box 7 to the average mass of each type of bean (isotope) in row 3. Which beans average mass is your #7 the closest to?

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

1. they vary with a higher number because boiling is way hotter than melting

the temperature of the gas, in k, not celsius.