No idea , sorry. maybe it is.....actually i dont know, sooo sorry
Sodium bicarbonate (or baking soda) will cause both exothermic and endothermic reactions when added to water. It becomes either unstable or stable carbonic acid, which will eventually become CO2. The reaction would be exothermic is when H2CO3 (Carbonic Acid unstable) is formed and endothermic is when CO2 is.
Out of the given options, the charge of an electron was not contributed by Neils Bohr.
Answer: Option 2
<u>Explanation:
</u>
The electron's charge was determined by using oil drop experiments performed by Millikan. While Neil Bohr suggested that electrons are rotating in discrete energy levels termed as orbits.
The hydrogen model of Neil Bohr dealt with the quantum energy emission when electron excite from higher energy level to lower energy level. He also stated that there is a relationship between the outer shell and the chemical properties of elements.
So, the second option that is the charge of an electron is not contributed by Bohr as it was contributed by Millikan.
Answer: 
at the temperature of the experiment is 0.56.
Explanation:
Moles of 
= 0.35 mole
Moles of 
= 0.40 mole
Volume of solution = 1.00 L
Initial concentration of = 
Initial concentration of = 
Equilibrium concentration of = 
The given balanced equilibrium reaction is,
Initial conc. 0.35 M 0.40 M 0 M 0M
At eqm. conc. (0.35-x) M (0.40-x) M (x) M (x) M
Given: (0.35-x) = 0.19
x= 0.16 M
The expression for equilibrium constant for this reaction will be,
![K_{eq}=\frac{[CO_2]\times [H_2]}{[CO]\times [H_2O]}](https://tex.z-dn.net/?f=K_%7Beq%7D%3D%5Cfrac%7B%5BCO_2%5D%5Ctimes%20%5BH_2%5D%7D%7B%5BCO%5D%5Ctimes%20%5BH_2O%5D%7D)
Now put all the given values in this expression, we get :
Thus at the temperature of the experiment is 0.56.
