16/08/2021 0.2229 of a divalent metal is deposited
when a current of 0.45 ampere is passed through
a solution of its salt for 25 minutes using
appropriate electrodes. calculate the relative
atomic mass of the metal IF is equal to 96500c/mol
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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

c is the answer because when something is left after something evaporates that shows the chemical change.