Maybe to not get rained on.
Hahhahahaha I ain't sure tho
Nitrogen is 5 valence electrons
oxygen is 6 valence electrons
fluorine is 7 electrons
<span>A. Missing part is ⁴He₂
You can also calculate it by adding/subtracting for atomic mass & atomic numbers
Hope this helps!
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mol of Na2CO3 = 2.36 x 10⁻⁴
<h3>Further explanation</h3>
Given
Mass : 0.025 g of Na2CO3
Required
moles
Solution
The mole is the number of particles contained in a substance
1 mol = 6.02.10²³
Moles can also be determined from the amount of substance mass and its molar mass :
mol = mass : molar mass
mass = mol x molar mass
Input the value :
mol = mass : MW Na2CO3
mol = 0.025 g : 106 g/mol
mol = 2.36 x 10⁻⁴
Answer:
Gases are more compressible
Explanation:
The particles of gases have weak forces of attraction making them move in constant random motion making them easier to compress
