Answer:
answer is b
use pv=nRT
p directly proportional to moles(n)
p1/p2=n1/n2
p/p2=n/2n
p2=2p
Answer: yes
Explanation: When you mix an acid an a base the color it showing a chemical change.
A.Rocks
Because they are not living things
Answer:
9.523
Explanation:
because the equation for speed is distance divided by time! hope that helps
D. Sound waves are a type of mechanical wave