Answer:
The speed of light, c, equals the wavelength, λ (pronounced lambda), times the frequency, ν, (pronounced noo).
c=λν
c is a constant. It is usually given as 3.00×108 m/s or 3.00×1010 cm/s rounded to three significant figures.❤
Answer:
1...option B
2... peroids
3..group
4.. metals
5...7
6...dmitri mendeleev
7.. xenon
8... compound can be broken down by physical means
9... they can be broken down into simpler substance
sry if its wrong
last two 8th and 9th i do t think ots correct
<span>Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming of natural gas, in a two-step process. In the first step, nitrogen and hydrogen react to form ammonia:
In the second step, ammonia and oxygen react to form nitric acid and water:</span>