When the elements combine form compounds, they do it to become stable. They give and taker the outside electrons or by sharing outer ring electrons.
Answer:
density of oxygen = 1.307 g/l
Explanation:
given pressure = 1 atm temperature = 298 k
PM=DRT
where p is pressure M is molecular mass D is density R is gas constant and T is temperature
substituting the values in the equation
D = 1.307 g/l.
Okay, so you need to start by finding the molar mass (grams in one mole) of nitrogen monoxide (NO).
N=14g
O=16g
So we know that NO has a molar mass of 30 grams, then just divide your given mass of 22.5 grams by the molar mass of 30 grams to find the number of molecules in your sample. The answer should be .75 molecules. Hope this helps!
Answer:
Upper cuticle and guard cells
Answer:
The hydrogen atom has just one electron, but many spectral lines. However it contains many shells and the movement of that electron from one shell to another causes the release of energy and also an emission of photons.
A spectral line are dark or bright lines formed within a specific frequency range which differ from other frequencies.Because of the difference of energy for the various shells, it produces different wavelengths and this is the reason for the many spectral line for hydrogen.
