Answer:
True
Explanation:
As per the standards of fishing outlined by Seafood watch, fishing related to endangered species , threatened species, over fished or depleted species has been restricted to allow these fishes to recover otherwise they may become extinct. Catching of mammals, sharks, finish, turtles, shellfish etc. have been strictly restricted . Not only this several fishing practices have also been restricted such as sea floor netting , Night setting , Side setting, Line shooter and mainline tension, bait caster, live bait, thawing bait etc.
<u>Answer:</u> The fractional abundance of Ir-191 is 0.372
<u>Explanation:</u>
Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.
Formula used to calculate average atomic mass follows:
.....(1)
Let the fractional abundance of Ir-191 be x and that of Ir-193 isotope be (1-x)
<u>For isotope 1 (Ir-191):</u>
Mass of isotope 1 = 190.96058 amu
Fractional abundance of Ir-191 = x
<u>For isotope 1 (Ir-193):</u>
Mass of isotope 1 = 192.96292 amu
Fractional abundance of Ir-193 = (1 - x)
Average atomic mass of iridium = 192.217 amu
Putting values in equation 1, we get:
![192.217=[(190.96058\times x)+(192.96292\times (1-x))]\\\\x=0.372](https://tex.z-dn.net/?f=192.217%3D%5B%28190.96058%5Ctimes%20x%29%2B%28192.96292%5Ctimes%20%281-x%29%29%5D%5C%5C%5C%5Cx%3D0.372)
Hence, the fractional abundance of Ir-191 is 0.372
Answer:
See explanation.
Explanation:
Hello,
In this case, we say that chemical reactions are governed by the law of conservation of mass, which states that matter cannot be neither created nor destroyed by transformed, for that reason, we need to balance chemical reactions in order to ensure all the atoms to be in the same quantity at both reactants and products.
Moreover, equilibrium is defined as such condition at which the concentration of both reactants and products stop changing over the time so they become constant as well as their null reaction rate.
A widely acknowledged reaction is the HABER one which consists on the synthesis of ammonia by using elemental nitrogen and hydrogen:

In such reaction, we have two nitrogens at both reatants and products and six hydrogens at at both reatants and products for us to obey the law of conservation of mass. Furthermore, as the time goes by, nitrogen reacts with hydrogen, nonetheless, they do not react indefinitely, they have a limit that is equilibrium, so their moles stop being consumed and remain unchanged as well as the produced moles of ammonia.
Best regards.
It will produce iron oxide