Which property of a substance is not affected by physical changes?
a)reactivity
b)size
c)shape
d)position

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

The concentration of ionic substances is important for the heart to beat. your heart responds to electrical impulses that travel through heart cells that are made up mostly of water. which properties of ionic compounds are important to support this function? solubility in water conductivity crystalline melting point