Why is it important for scientists to keep testing a hypothesis even after they’ve found it to be true? a. repeated tests determine whether the hypothesis is always true in different circumstances. b. experiments are rarely accurate, so it’s important to keep testing a hypothesis. c. scientists can learn experimental procedures through repeated testing of a hypothesis. d. repeatedly testing a hypothesis qualifies it to be accepted as a theory.

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

what is the question?