Answer:
Mixtures are made of two or more substances (elements or compounds) that are mixed physically but not chemically.
Using this definition we can say the reasons are the first two.
Answer:
A. Perchloric acid and potassium hydroxide
B. Trioxonitrate V acid and Cesium hydroxide
C. Hydroiodic acid and calcium hydroxide
Explanation:
An acid reacts with a base to form salt and water. The acid and the base that reacted for each of the compounds have been written in the answer above. The reaction equations are given below:
A. HClO4 (aq) + KOH (aq) ———> KClO4 (aq) + H2O (l)
B. HNO3 (aq) + CsOH (aq) ———-> CsNO3 (aq) + H2O (l)
C. 2HI (aq) + Ca(OH)2 (aq) ———> CaI2 (aq) + 2H2O (l)
9.32 is the new volume of the balloon.
Explanation:
Data given:
Initial volume of the balloon V1 = 10 litres
initial temperature in the room T1 = 24 degrees 0r 297.15 K
final volume V2=?
final temperature T2 = 3.8 degrees OR 276.95
from the values given it is deduced that we have to apply Charles Law
=
V2 =
putting the values in the equation:
V2 -
V2 = 9.32 liter
When baloon is taken from a warm room to outside where it is cold the volume of the gas becomes 9.32 litre in the balloon
It’s forming An Hurricane
<u>Answer:</u> The standard free energy change of formation of is 92.094 kJ/mol
<u>Explanation:</u>
We are given:
Relation between standard Gibbs free energy and equilibrium constant follows:
where,
= standard Gibbs free energy = ?
R = Gas constant =
T = temperature =
K = equilibrium constant or solubility product =
Putting values in above equation, we get:
For the given chemical equation:
The equation used to calculate Gibbs free change is of a reaction is:
The equation for the Gibbs free energy change of the above reaction is:
We are given:
Putting values in above equation, we get:
Hence, the standard free energy change of formation of is 92.094 kJ/mol