What is an acid-base reaction also called?
a. antacid reaction
b. neutralization reaction
c. salt-water reaction
d. single-displacement reaction

B. Neutralization reaction.

Explanation:

Acid base reaction is called neutralization reaction because the product of this reaction are neutral substances.(i.e. salt and water which are neutral in nature as their PH value is 7).

For example...

HCl + NaOH > NaCl + H2O

Here, acid(HCl) reacts with base(NaOH) to give nutral substances salt(NaCl) and water(H2O).

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form