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I think 0kg because they are flying.
They have hydrogens numbers wrong its 1.008 not 1.01
There is fr-218
hope this did the job, have a nice rest of your day!!
Answer:
the image won't load so maybe upload it again please
One of the industrial method for the production of hydrogen is the steam reforming process while oxygen is air separation.
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Industrial method of hydrogen preparation </h3>
One of the industrial method for the production of hydrogen is the steam reforming process also known catalytic steam–hydrocarbon process.
In catalytic steam–hydrocarbon process, gaseous or vaporized hydrocarbons are treated with steam at high pressure over a nickel catalyst at 650°–950° C to produce carbon oxides and hydrogen.
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Industrial method of oxygen preparation </h3>
One of the industrial method of oxygen production is the separation of air using either a cryogenic distillation process or a vacuum swing adsorption process.
Learn more about hydrogen production here: brainly.com/question/25597694
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