Physical change as no new substance is created
Explanation:
In acid – base chemistry, salts are ionic compounds that result from the neutralization reaction of an acid and a base. Basic salts contain the conjugate base of a weak acid, so when they dissolve in water, they react with water to yield a solution with pH greater than 7.0.
Answer: sorry I don't know but if I did I would help
Explanation:
The Answer is C. stratosphere
The atmosphere is a mixture because it contain many types of gases , liquids and solids.
