<span>"between energy, electron position and the emission of electromagnetic energy. However, it is ... From that excitation state, the electron can then drop back down, releasing a photon with a predictable amount of energyin the process."</span>
Answer:
sodium hydroxide + Hydrochloric acid -> Sodium chloride + Water
Explanation:
sodium hydroxide + hydrochloric acid = neutral solution
[Base]. [Acid]
This turns the phenophthalein Colourless
Answer:
The percentage yield is 90.9 % (<em>option e</em>)
Explanation:
A simple rule of three to explain this.
If the theoretical yield of the reaction is 47.2 g Fe, we assume it as 100%, then what percentage of yield means 42.9 g Fe
47.2 g Fe _____ 100 %
42.9 g Fe ______ ( 42.9 . 100)/ 47.2 = 90.88%
Carbon C:
0.153 gC/12gC = 0.0127 molC/0.0074375
= 1.714
Hydrogen H2 :
0.017 gH/1 gH = 0.017 molH/0.0074375
= 2.29
Oxygen O2 :
0.119 gO/16g = 0.0074375 molO/0.0074375
= 1
The chemical make-up or its viscosity
