Calculate the number of atoms in 0.316 mol of phosphorus

The number of atoms of phosphorus are

Explanation:

We are given:

Number of moles of phosphorus = 0.316 moles

According to mole concept:

1 mole of an element contains number of atoms

So, 0.316 moles of phosphorus will be present in number of atoms

Hence, the number of atoms of phosphorus are

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