The answer is (4), (3) is merely a change in composition, thus not chemical but physical.
Answer: (4).
Answer:
17
Two clear liquids mix and form a
white solid
18.chemical
A pot of water begins to
boil
19.Physical
the rest im usure on.
The answer is 44.0095. We assume you are converting between grams CO2 and mole.
<span>Ka is an equilibrium constant for the partial ionization of "weak" acids in water.</span>
Mass number = protons + neutrons
mass number = 5 + 7
mass number = 12
