Name:
17. which of the following elements is a halogen?
a. po
b. s
c. i
d. sn
e. kr

What determines the average kinetic energy of the particles in a gas? a. the number of collisions b. the number of particles c. the size of the particles d. the temperature

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

What does the symbol (–hfus) indicate in a phase change?