<p>Explain the following statements in terms of the chemical properties of the substances involved:</p>
<p>NaCl is a strong electrolye, whereas PbCl2 is a weak electrolyte.</p>
<p>^ Will have to think about that one. I really regret self studying chem right about now.</p>
<p>NaCl dissolves in water while PbCl2 is a precipitate.</p>
<p>polyprotic acid is a acid with multiple number of H+s bonded to the conjugate base like H3PO4</p>
<p>Nice :D! I'll try to think of some others, this really helps, keep it going!</p>
<p>Polyprotic acid: acid with more than one hydrogen. </p>
<p>2nd law of thermodynamics restated: Any spontaneous physical or chemical change must result in an increase in the entropy of the universe.</p>
<p>well yeah although there are some reactions that are favored like exothermic but decrease in entrophy.</p>
<p>Solubility of Gas how about? There's a general rule with the temperature and pressure of the gas.</p>
<p>When a metal dissolves in water and the color of the water changes, it means that _____ has formed creating the color. Let's say Fe for example
Low temp high pressure best condition for gases to dissolve</p>
<p>Nice! That's right. You seem to have a hang for this completely.</p>
<p>Gases are soluable at high pressure and low temp.</p>
<p>Another restatement of the 2nd law of thermo: Both the system and the surrounding cannot gain entropy simultaneously. If one gains, then the other must lose.</p>
<p>yeah basically but what are you trying to argue
Meng: it's a complex ion
thanks</p>
<p>Trying to state that IT IS A LAW AND THERE ARE NO EXCEPTIONS.</p>
<p>refining the law until it fits is all i'm doing.. :)</p>
<p>-.-; The law is basically what was stated first. Any more to make me expand my knowledge? Everything I don't know, I'll definately remember by feeling inadequate. Hehe.</p>
<p>Which one is the best oxidizing agent?</p>
<p>Hydrofluoric acid
Carbon dioxide
Aluminium hydroxide
Ammonia
Hydrogen peroxide</p>
<p>hehe.. just "changing" it until i get it right, tho it sounds weird. Now I won't ever forget the laws of thermo!!</p>
<p>When a metal dissolves in water and the color of the water changes, it means that _____ has formed creating the color. Let's say Fe for example
anyone?
H2O2 very powerful</p>
<p>BMod I know that law is true, but why do some reactions occur? like the ones in which delta H is negative and delta S is negative?</p>
<p>A complex ion? A precipitate?</p>
<p>[Fe(H2O)6] 2+ or 3+ it's a complex ion.</p>
<p>BMod I'm not questioning the law, but how do those reactions occur?</p>