E=hf
h=6.63*10^-34
f=8.66*10^14
E=6.63*10^-34*8.66*10^14=57.4*10^-20 joules
Answer:
B
Explanation:
hợp chất nào có khả năng là hợp chất ion cao nhất ?
A Al2O3?
B
The refractory period makes the cell rest. In this period, the cell becomes able to depolarize again by collecting ions.
Answer:
C₆H₁₀NO
Explanation:
In order to arrive at a molecular formula we have to make some assumptions and they are
Assuming there is one ( 1 ) N and one ( 1 ) O that is present in the said molecule
Total mass = 29.998
next step: subtract the total mass from 112.0499 = 82.501
next : assume the presence of 6 carbon atoms in said molecule
Total mass = 6 * 12 = 72
Mass of Hydrogens = 82.501 - 72 = 10.501
∴ number of hydrogens = 10.501 / 1.0078 ≈ 10
Hence Total mass = 29.998 + 82.501 ≈ 112.0499
Finally Molecular formula = C₆H₁₀NO
Answer:
1.Creates environmental hazards
2.Can contribute to global warming processe
3.Can pollute harmful and toxic things in the air
4.has harmful gases that can hurt the environment including the water and soil
5.A waste of space that is taking up the earth
6.full of rubbish and toxins that can effect the environment
7.can hurt humans and animals because of the toxic chemicals produced in the air
8.Make the land soil weaker because of the bad toxins and chemicals
