The statue of liberty is composed of copper. the smallest particle of any amount of copper is

a)
an atom.

b)
an element.

c)
a compound.

d)
a molecule.

How much heat is required to convert 0.3 kg of ice at 0°c to water at the same temperature

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island