<p>NH4Cl2....</p>
<p>That's not an element...</p>
<p>Ya an element is like Fe</p>
<p>but anyways that is Ammonium chloride right? It's been a while since AP chem...</p>
<p>Yep, Ammonium Chloride it is...</p>
<p>Compound not an element, it is ammonium chloride</p>
<p>Oh yeah.</p>
<p>compound*</p>
<p>isnt NH4Cl ammonium chloride or can they both be it?</p>
<p>its not Cl2...NH4 has a charge of 1 + right?</p>
<p>w/e i could be wrong</p>
<p>But its not "ammonium chloride."</p>
<p>Chapter 2.
5. Which of the following formula-name combinations is(are) CORRECT?
i. NH4Cl2 - ammonium chloride
ii. K2CO3 - potassium carbonate
iii. Ca3(PO4)2 - calcium phosphate</p>
<p>The correct combination(s) is (are)</p>
<p>A. i only
B. ii only
C. i and iii only
D. ii and iii only
E. i and ii only</p>
<p>The correct answer is D, which makes ii and iii the correct ones while i is incorrect. I need to know why i is incorrect.</p>
<p>^ read my post...NH4 has a charge of 1+ and Cl has charge of 1-...this would make the compound NH4Cl</p>
<p>Yeah. NH4Cl would be ammonium chloride. One of my friends said NH4Cl was ammonium perchloride. What is ammonium perchloride?</p>
<p>Oh I see what you guys are saying. The correct formula for ammonium chloride is NH4Cl; that is why i is incorrect.</p>
<p>Um, perchloride doesn't exist I dont think. Perchlorate does though.</p>
<p>Perchloride is a polyatomic ion. ClO4 (with a charge of 1-?), I think. Something like that. Trust me; NH4Cl is AMMONIUM CHLORIDE. NH4Cl2 doesn't exist (or at least wouldn't be on a normal AP Chem test).</p>
<p>ew
ap chem can go die :)</p>
<p>hahah this thread is funny</p>
<p>The ANswer is D</p>
<p>
[quote]
Perchloride is a polyatomic ion. ClO4
[/quote]
Like tintin said, that's perchlorate. ClO3 is chlorate, ClO2 is chlorite, and ClO is hypochlorite (all of them are anions with a 1- charge).</p>
<p>any of you guys done a thermite reaction before?</p>