I believe that it would be that mass and texture affect the amount of friction. Hope this helps!
Answer:
D.electrical signals and chemical neurotransmitters
Explanation:
chemical transmitters are the language that neurons use to connect eachother.
I think the answer is 42kg m/s.
KCl is a neutral product because KCl is formed from the acid base reaction of KOH and HCl. KOH is a strong base and HCl is a strong acid and when you put them together, you get a neutral product after a chemical reaction. The acid and the base cancel each other out to cause a neutral product.