We know that the molar mass of N is 14 and O is 16,
therefore the molar mass of N2O is:
molar mass N2O = 14 * 2 + 16 = 44 g/mol
The number of moles:
moles N2O = 0.187 / 44
moles N2O = 0.00425 mol
There are 2 moles of N per 1 mole of N2O hence:
moles N = 0.00425mol * 2
<span>moles N = 0.0085 mol</span>
<span>A. the sum of the protons and neutrons in one atom of the element</span>
1s2,2s2.2p6,3s2,3p6,3d4,4s2
Imagine a square. In an electron dot diagram, the elements symbol is in the center. It represents the nucleus and the inner electrons. The valence electrons are drawn as dots on the sides of the square. These electrons are distributed one on each side, and then paired up. For example, chlorine is in period 17 and has 7 valence electrons. "Cl" would go in the center of the square, and then there would would be two dots on three of the square's sides, and one dot on the other. However, the sides of the square are imaginary, don't draw them.
Bacterial cells have no nucleus. All of the other options are present and apply to bacterial cells. The chromosomal content and or bacterial genome is located in the cytoplasmic region of the cell, surrounded by histone like or Nucleoid associating protein structures called NAPS. This helps to pack and condense the single stranded circular DNA molecule that is double stranded within the irregularly shaped region of the cytoplasm, called nucleoid.