Answer: In atoms, there are a total of four quantum numbers: the principal quantum number (n), the orbital angular momentum quantum number (l), the magnetic quantum number (ml), and the electron spin quantum number (ms).
Answer:
253.02 kJ.
Explanation:
The balanced reaction for the decomposition of baking soda is
2 NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g)
We can find the heat of reaction by using the Hess' Law. This is done by using this formula:
∑(Hf,products) -∑(Hf,reactants) = Heat of reaction
where Hf is the heat of formation. According to literature, these are the heats of formation for each of the compounds in the reaction:
NaHCO3: -947.68 kJ/mol
Na2CO3: -1130.94 kJ/mol
CO2: -393.51 kJ/mol
H2O: -241.8 kJ/mol
Applying Hess' Law:
[1(-1130.94) + 1(-241.82)] + 1(-393.51)] - [2(-947.68)] = 129.09 kJ
Thus, the heat of reaction is 129.09 kJ/mol NaHCO3. Since there is 1.96 mol of NaHCO3, the total heat of reaction is 253.02 kJ.
Among ammonia, neon and copper,
Ammonia is a compound
Neon is an element
Copper is an element
Ammonia is a compound as it is made up of nitrogen and hydrogen that combines in a ratio that is 1 :3 to form 1 mole of ammonia.
And copper and neon are element as they consist of only one type of atom.
So the answer is that Ammonia is a compound
Neon is an element
Copper is an element
Answer:
The answer to your question is: Number 1.
Explanation:
The correct answer to your question is number 1. The car will stop immediately because 2 balanced forces will cause an object stop moving.
If we apply a force of 6 N to the left and another person applies a force of 6 N to right both forces are cancel and the result is O, so the car will stop moving.
Assuming the system is an ideal gas where the intermolecular forces are very limited. In this case the ratio of the pressure to the total pressure is equal to the ratio of the moles of CO to the total number of moles. Therefore,
n/n,total = p/p,total
0.22/(0.22+0.35+0.64) = P/2.95
P = 0.536 atm