Answer: Option (3) is the correct answer.
Explanation:
Atomic number of nitrogen is 7 and its electronic configuration is . Thus, we can see that valency of nitrogen is 5.
So, one nitrogen atom has one lone pair of electron.
Therefore, when two nitrogen atoms will bond together then there will be three pairs of electrons bonded together and one lone pair of electron on each nitrogen atom.
Answer:
Gravity
Explanation:
Nuclerar fusion and fission does include the others I think
<u>Answer:</u> The pressure of carbon dioxide needed is 2.94 atm
<u>Explanation:</u>
To calculate the partial pressure of carbon dioxide, we use the equation given by Henry's law, which is:
where,
= Henry's constant =
= molar solubility of carbon dioxide gas =
= pressure of carbon dioxide = ?
Putting values in above equation, we get:
Hence, the pressure of carbon dioxide needed is 2.94 atm
Interphase, prophase, metaphase, anaphase, telophase, cytokinesis is the right order!
M ( Mg ) = 80.45 g
We can find the molar mass of magnesium in the Periodic table:
M ( Mg ) = 24.31 g / mole
n = 80.45 g : 24.31 g/mole = 3.31 moles
N a ( Avogadro`s constant ) = 6.02 * 10 ^23
N = Na * n = 6.02 * 10 ^24 * 3.31 = 19.926 * 10 ^23
Answer: There are 1.9926 * 10 ^24 atoms.