Indicate whether each of the following is a chemical property or a physical property. If it is a physical property, indicate whether it is an intensive or extensive property.

1. Vinegar reacts with baking soda
2. Most metals react with acids
3. A given sample of lead weighs 4.5g
4. Gold conducts electricity

Question

Indicate whether each of the following is a chemical property or a physical property. If it is a physical property, indicate whether it is an intensive or extensive property.

1. Vinegar reacts with baking soda
2. Most metals react with acids
3. A given sample of lead weighs 4.5g
4. Gold conducts electricity

aaronq · Answer

physical = change in state (e.g. gas to liquid, liquid to solid)

chemical = rearrangement of bonds (i.e new substances formed)

extensive = changes with sample size (e.g. mass)

intensive = doesn't change with sample size (e.g. colour)

helpmeplease14 · Answer

?

helpmeplease14 · Answer

I know the definitions

aaronq · Answer

so what are you having trouble with?

helpmeplease14 · Answer

For 3 I know it's a physical property but don't know if it's intensive or extensive

helpmeplease14 · Answer

4 i dk I answered 1 and 2 already

aaronq · Answer

so for 3, it was physical, mass is an extensive property because it can change with how much you have

aaronq · Answer

Gold conducts electricity is physical, and it's intensive because it doesnt matter how much gold you have, it still has the same conductivity

helpmeplease14 · Answer

Oh OK thx