Answer
Because the two particles have an equal charge, the charges will cancel out and give the atom an overall charge of 0. So, if at atom has 35 protons in the nucleus, we could expect it to have 35 electrons orbiting that nucleus.
Explanation:
N₂O₄ (g) ⇌ 2 NO₂ (g)
Kc = [ NO₂ ]² / [ N₂O₄ ]
4.2 = [ 0.785 ] [ N₂O₄ ]
[ N₂O₄ ] = 4.2 / 0.785
[N₂O₄ ] = 5.350 M
hope this helps!
The answer is CI because that is the largest
A.
The first energy level has 2 electrons, the second has 8, and the third has 4
Answer: D. Amount of substance present in Avogadro‘s number of particles of the substance
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 Liters at STP, contains avogadro's number 
of particles and weighs equal to the molecular mass of that substance.
A mole is defined as the amount of substance that contains Avogardro number of the substance. Avogadro's number is given by 
.
particles
