Which characteristics you distinguish
pyrite (fool's gold) from actual gold?

Tarnish,Striations,Shape,Color,Specific Gravity,Hardness,Ductility.

Explanation:

Ductility: Gold is usually very ductile in nature and will bend on pressure.Fool's Gold will break or resist the pressure.

Hardness: Gold(hardness scale 2.5) will most probably not scratch a copper surface (hardness of 3), but pyrite will very easily be able to do that. Even Gold will be scratched by copper pieces but copper can barely scratch other metals.

Color: Pyrite color is brass type. Gold has a little yellow to golden colour.

Tarnish :God can't be tarnished that easily whereas Pyrite can.

the answer

explanation:

the capillary tube was too close to the bottom of the beaker.

the ruler may have moved.

water got into the capillary tube.

the temperature was not allowed to equilibrate in the 2-4 minutes.

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