Answer:
Acetylene: -1,256 kJ/mol
Ethanol: -1,277 kJ/mol
The combustion of 0.25 mol of an unknown organic compound results in the release of 320 kJ of energy. Which of the compounds in the table could be the unknown compound?- Answer: Ethanol
Answer: https://study.com/academy/answer/complete-the-sentence-concerning-the-energy-level-diagram-for-the-hydrogen-atom-the-equation-relating-the-energy-separation-between-levels-in-the-h-atom-to-the-number-of-the-level-n-is-called-the-equation.html#:~:text=Answer%20and%20Explanation%3A,is%20called%20the%20Bohr's%20equation.
Bohr's equation
Explanation: https://study.com/academy/answer/complete-the-sentence-concerning-the-energy-level-diagram-for-the-hydrogen-atom-the-equation-relating-the-energy-separation-between-levels-in-the-h-atom-to-the-number-of-the-level-n-is-called-the-equation.html
Answer and Explanation: The equation relating the energy separation between levels in the H atom to the number of the level (n) is called the Bohr's equation.
Answer:
2.627775588 degrees Celsius (with 2 sig figs)
Explanation:
We need to use our equation q=m×s×(change in temp) and solve for our change in temperature. So divide both sides by m×s and you'll get:
Change in temp=q/(m×s) Where q= J of heat m=mass and s= specific heat
So now we just plug our numbers in:
56J/(23.6g×0.903J/g°C)= 2.627775588 and since 56 only has 2 sig figs, we round the final answer to 2.6°C
Answer:
Was the metal oxidized?
Cu = No | No | No
Fe = Yes | No | No
Zn = Yes | Yes | No
Oxidizing Agent:
Cu = None | None | None
Fe = Cu, NO3 | None | None
Zn = Cu, NO3 | Fe, NO3 | None
