I think it would be D because it makes the most sense
Answer:
Atmoshphere!
Explanation:
I took the test and got a 100%! :) Hope this helps, plz mark brainliest!
Answer:
(A) those with atomic numbers from 93 to 118
Explanation:
got the answer from q**zlet. hope this helps :)
Answer:
20.5 L
Explanation:
-The stoichiometric reaction of the 2 gases is:

-We apply the combined gas law to determine the resultant volume of the ammonia gas formed:

Since, the temperature and pressure remain constant, the volume of the ammonia gas formed is equal to the volume of the reactants.
Hence, the volume after the reaction is 20.5 L
Answer:
True
Explanation:
A titration can be defined as the experiment where the volume of known con concentration is mixed into another solution whose concentration is not known.
Most of the titration are acid-base titration. When performing titration the indicator which is used is usually phenolphthalein. The end point of the titration is the point where the indicator changes its color.
In case of acid base reaction, the end point is achieved when the phenolpthalein turns faint pink in color from transparent.
Hence, the given statement is correct, the indicator changes its color close to the end point of titration.