When a balloon is rubbed with human hair, the balloon acquires an excess static charge. this implies that some materials
a) conduct electricity, while others do not.
b) can accept protons more easily than others.
c) can give up electrons more readily than others.
d) repel negative objects, and others attract them.

gas

explanation:

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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