Answer:
red because of how reflective and hydrogen
Explanation:
To find the Percent Composition of an atom, you use this formula:
Mass of element in the compound you're studying on ( in this case it's 5 since there is 5 Hydrogens) over the mass of the compound (which is here 79), Multiplied by 100 since you want a percent.
So we get:

So you get about:


So, the percent composition of Hydrogen in NH4HCO3 is 6.3%
Hope this Helps! :D
Metals experience plastic
deformation when a specific amount of pressure and temperature is applied to
them. Most metals have low specific heat. Because of their low specific heat,
they easily get hot when heat is applied to them.