Answer:
Second step of the mechanism is slow step.
Explanation:
The given chemical reaction is as follows
The mechanism of the reaction is as follows.
The rate of the reaction.
Therefore, Step -2 must be slow.
It is important to conserve non renewable sources of energy such as coal and oil because they are running out. If we burn all the oil to generate electricity then there will be none left for other useful things we use oil for.
Given that the bunsen burner heats up at least 215 degrees C, then beaker will melt during that fraction of a second and will then cool down at a temperature lesser than 215 degrees. This is due to the surrounding atmosphere of the beaker, after the beaker reaches or exceeds its melting point, the beaker will melt but then after some time, its temperature will cool down.
Answer:
12
Explanation:
If you look at the periodic table, you can see that magnesium has an atomic mass of 24.305. Subtract the number of protons from this to get neutrons.
24.305 - 12 = 12.305
12.305 is the average amount of neutrons a magnesium atom can have. A magnesium atom can have 12, 13, or 14 neutrons. The average, based on the natural abundance, is 12.305. To find which isotope is more abundant, you need to pick the number that is closest to the average. This would make the most abundant isotope the one with 12 neutrons.
The ranking of terms importance in deciding on the true structure of a molecule:
Experimental evidence> Lewis structure> formal charge
- In describing the structure of the molecule experimental evidence is of utmost importance followed by lewis structure and then formal charge.
- Experimental evidence is an inference of a practical technique that one will conduct to determine the original arrangement of atoms in a molecule by following a set of ordered steps.
- Evidence will give the real picture regarding the structure of the molecule as no guesswork or prediction is employed.
- Whereas Lewis structures and formal charge are the theoretical concepts that will only help in predicting the structure of a molecule which can be correct, partially correct, or wrong.
So, from this, we can conclude that the ranking of terms importance in deciding on the true structure of a molecule:
Experimental evidence> Lewis structure> formal charge
Learn more about lewis structures here:
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