Answer:
Hydrogen bond is a <em>special type of dipole-dipole interaction between the hydrogen atom in a polar bond, such as N-H, O-H, or F-H, and electronegative O,N or F atom</em>. The interaction is written:
A-B . . . B or A-H . . . .A
A and B represent O,N or F; A-H is one molecule or part of a molecule and B is a part of another molecule, and the dotted represents the hydrogen bond. So, hydrogen bond is a type of intermolecular forces (attractive forces between molecules, <u>NOT</u> between atoms of the same molecule), and only a few elements can participate on hydrogen bond formation.
<em>Note: dipole-dipole interactions are forces between polar molecules, that is, between molecules that possess dipole moments. </em>
Answer:
Nêu các ứng dụng phg pháp chuẩn độ oxy hoá khử please speak in english bubu mo tanga
In short, Hubble's Law is telling us that the universe is expanding. A way of thinking about his law, is raisin bread. The raisins are galaxies, and the dough is is space between all of the galaxies. When the dough is cooked, it rises and expands, leaving the raisins farther and farther apart.
SAMPLE A - <span>pure substance.
</span>SAMPLE B - <span>homogeneous mixture.
</span>SAMPLE C - <span>heterogeneous mixture.
</span>Pure substance - <span>constant composition and properties.</span>
Homogeneous mixture - same uniform appearance and composition.
Heterogeneous mixture - <span>not </span>uniform<span> in composition, two phases (liquid and dust).
</span>
Hey mate here is your answer...
the correct option of the question would be CONCENTRATION ,because concentration of the reactant and product becomes equal at equilibrium.
hope it helps you..
be brainly
adhikaripratyush from india