Answer: Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change.
you can learn who's blood it is, you can also see the blood patterns and how the crime maybe happened.
Answer:
x
Explanation:
becaue neutron equal to mass num -atomic num
Since the volume is constant,
p1/t = p2/ t
210/120 = p2/150
p2= 262.5kpa
