At what time would the velocity reach 60.00 km/hr? it will never travel at 60.00 km/hr. it travels at a different constant rate. 10.00 seconds 100.00 i found the answer its 10.00 seconds.

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

thats how its supposed to be

the answer is d.) potassium