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This of the following occurs when two hydrogen atoms bond with each others:
(1) Potential energy is lowered
(2) Kinetic energy is lowered
(3) Electronic motion ceases
(4) Energy is absorbed
Ans: Potential energy is lowered
The number of orbitals in d sub-shell is : (1) 1 (2) 3 (3) 5 (4) 7 Ans: 5
Determine the molality of an aqueous solution that is 12.0 percent urea by mass
Q. Calculate standard state enthalpy of the substance? Ans. To determine ΔH o f for calcium carbonate, calcium and carbon are burned in a calorimeter. Noti
lithium and beryllium markedly differ from other members of their respective groups.
Which of the following sets of quantum numbers represent an impossible arrangement: n l m m2 (1) 3 2 - 2 (+)
fe
OSTWALDS DILUTION LAW IS APPLICABLE TO WHAT
Every precipitate will be collected using a Hirsch funnel. Make definite that the plastic frit disc is firmly snapped in place in your focus. Replacement frit discs are available
what is 1 u equal to ?
Which has highest second ionisation energy? Electronic config of Na(+) is noble gas config. . so its very difficult to remove an electron so it will have very high 2nd ionisati
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