I need an answer for this ASAP. D) The equation for the reaction taking place in the titration is shown:

HNO3+KOH→KNO+3H2O

The student concluded that the aqueous potassium hydroxide was more concentrated than the dilute nitric acid. Explain whether or not the student's conclusion was correct.

Also answer
21.a and b

answer; /// i do believe that the correct answer is (a) boiling

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

have a great day because if you dont you and i will be sad