<h3><u>Answer;</u></h3>
A) HNO3 and NO3^-
<h3><u>Explanation;</u></h3>
- <em><u>HNO3 is a strong acid and NO3 is its conjugate base, meaning it will not have any tendency to withdraw H+ from solution.</u></em>
- Buffers are often prepared by mixing a weak acid or base with a salt of that weak acid or base.
- The buffers resist changes in pH since they contain acids to neutralize OH- and a base to neutralize H+. Acid and base can not consume each other in neutralization reaction.
Answer:
The order of conductivity will be as follows:
> NaBr > Benzoic acid > sugar
Explanation:
ionizes to give one Al and three ions and thus, produces 4 ions.
Sugar does not ionizes and hence does not produce ions.
Benzoic acid is a weak organic acid and ionizes to produce two ions; and .
Sodium bromide is a strong electrolyte and ionizes to produce 2 ions.
As sodium is strong electrolyte, therefore, its conductance will be higher than benzoic acid.
Therefore, the order of conductivity will be as follows:
> NaBr > Benzoic acid > sugar
<u>fluorine (F) </u>
Explanation:
is the most electronegative of the elements, while francium (Fr) is the least electronegative..
<h3>-QuTeyytyokolet0098</h3>
The gravitational force would change because once the astronaut moves away from the Earth, the gravitational force gets weaker.