Answer:
True. Ripening of a banana is a chemical change
It will belong to the metals because metals bond with nonmetals like chlorine to form ionic compounds
The first whistle is louder while the second whistle has a higher pitch
Loud vs high
Both indicate the temperature at which the solid and liquid states of a substance are in equilibrium would be your answer.
This is beacause the melting point of a substance is the same as the freezing point of a substance. At this particular temp, the substance can be either a solid or a liquid.
hope this helps!