Answer:
A
Explanation:
hail will fall push it back up making it bigger comes back down
Answer:
The number of neutrons is entirely dependent on the Mass number of the particular atom. The standard mass for potassium is 39.
Potassium is element number 19, so it has 19 protons and 19 electrons in the neutral atom. It has therefore 39-19 = 20 Neutrons.
Explanation:
One of the industrial method for the production of hydrogen is the steam reforming process while oxygen is air separation.
<h3>
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.
<h3>
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
#SPJ1
Answer:
D
Explanation:
Your supervisor is in charge of you so therefore you must always tell your supervisor first.