20.0 ml of a 0.0985 M solution of sodium hydroxide is added to 18.0 ml of a 0.103 M solution of hydrochloric acid. What is the pH of the final solution?

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Explanation:

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answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

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