Answer:
16.8128 grams of sodium azide is needed
Explanation:
2NaN3 = 2Na + 3N2
molar mass of NaN3 =
molar mass of N2
moles of N2 =
moles=mass/R.F.M
16.55÷42 = 0.3940
mole ratio=
2NaN3 : 3N2
3 = 0.3940
2=?
Mass of sodium azide =64×0.2627
=16.8126
The valence electrons are determined by the column that the element falls in.
Column 1 has 1 valence electron
Column 2 has 2 valence electrons
Column 13 has 3 valence electrons
Column 15 has 5 valence electrons
column 16 has 6 valence electrons
column 17 has 7 valence electrons
Elements are trying to become stable by filling the outer energy level. Columns 1,2,3 do this by losing 1,2 or 3 electrons and becoming positive ions. +1, +2, +3, respectively
Columns 15, 16, 17 do this by taking those electrons and becoming negative ions. -3, -2, -3. respectively.
(a) benzene (C6H6) - <span>nonpolar molecules . Only dispersion forces are present.
</span>
(b) CH3Cl - <span>Chloroform ; polar molecules. Both dispersion and dipole-dipole forces are
present.
</span>
(c) PF3 - <span>Phosphorus triflouride ; has polar bonds but has nonpolar molecule due to its symmetrical structure. Only dispersion forces are present.
</span><span>
(d) NaCl - </span><span>Sodium chloride ; ionic compound. Both ion-ion and dispersion forces are present.</span><span>
(e) CS2 - </span><span>Carbon disulfide ; nonpolar molecules. Only dispersion forces are present.</span>
<h2>A : Hamstrings</h2><h2 /><h2>B : Ligament</h2><h2 /><h2>C : Meniscus</h2><h2 /><h2>D : * think this is Ligament too! hope im right</h2><h2 /><h2>E : Femur (Thigh Bone)</h2>
P = pressure, V = volume, T = absolute temperature k = constant.
