We calculate for the number of moles of water given its mass by dividing the given mass by the molar mass.
n water = (36.04 g) / (18 g/mol)
n water = 2 mols
From the given balanced equation, every 6 moles of water produced will require 7 moles of oxygen.
n oxygen = (2 mols H2O) x (7 moles O2 / 6 moles H2O)
n oxygen = 2.33 mols O2
Answer : The correct option is, 11.77 L
Solution : Given,
Mass of bromine gas = 84 g
Molar mass of bromine gas = 159.8 g/mole
First we have to calculate the moles of bromine gas.
Now we have to calculate the volume of bromine gas at STP.
As we know that at STP,
1 mole of bromine gas contains 22.4 L volume of bromine gas
So, 0.5256 mole of bromine gas contains 
volume of bromine gas
Therefore, the volume of bromine gas at STP is, 11.77 L
<h3>Question :</h3>
The use of genetics by farmers to produce more abundant and healthier crops is an application of the science of _____.
<h3>Answer :</h3>
The use of genetics by farmers to produce more abundant and healthier crops is an application of the science of <u>biotechnology</u>.
So correct option is 2nd biotechnology.
<h3>Explanation :</h3>
Biotechnology is the use of biological structures and processes for useful industrial purposes, whether product or function.
The right answer for the question that is being asked and shown above is that: "b. positive or negative charge" An isotope undergoes radioactive decay by emitting radiation that has no mass. The other characteristic does the radiation have is that b. positive or negative charge
