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The increasing order (lowest first) for the values of e/m (charge/mass) for:
(1) e,p,n,a
(2) n,p,e,a,
(3) n,p,a,e,
(4) n, a,p,e,
Ans: n, a,p,e,
List orbitals from biggest to smallest, 3s, 3p, 3d.
lab preparation of ethane
The phosphate of a metal has the formula MPO4 .The formula of its nitrate will be: (1) MNO 3 (2) M 2 (NO 3 ) 2
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Calculate the molarmass of a nonelectrolyte that lowers the freezing point of 25.00g of water to -3.9 degrees C when 4.27 g of the substance is dissolved in the water.
A solution contains an unknown amount of osmium at the µg/g level, or below. Chemically pure osmium (Os) may be separated from the solution, but the chemical yields are variable an
The only nonradioactive isotope of fluorine has 9 protons and 10 neutrons. a. What is its mass number. b. Write the full symbol of this atom.
DRAW A SET UP FOR THE FOLLOWING SEPERATION TECHNIQUES; FILTRATION,SEPERATING FUNNEL EVAPORATION ,DECANTATIOON, DISTILLATION.
What impact does Chemistry have on linguistic anthropology?
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