An impure sample of potassium hydrogen phthalate (KHP) was titrated to determine the percent composition KHP. What is the percent of KHP if 2.81 g of the impure KHP required 35.61 mL of 0.152 M NaOH to reach the end point?

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

the awnser is group 12

the right answer is c i just did the question.