a household(if possible) compound of an alkali metal & a halogen?
484197
Salt - sodium chloride.\n\nIf you need something a bit more unusual, I believe there is imitation salt which is potassium chloride.
483391
I'd sure be cautious with any Methylene Chloride!  It is highly volatile and it is a carcinogen.  Nasty stuff!  I would first try a strong detergent and steam.  Steam will loosen a lot of compounds that you wouldn't expect to respond to heat and water alone.\n\nJohnny
770566
Halogens, in their elemental state, are covalent. In their elemental state, they are not compounds, because they are not combined with other elements. But F2, Cl2, Br2, I2, and At2 are covalently bonded.
207266
Alkali metals and alkali earth metals tend to form ionic bonds.  They have a +1 or +2 charge.\n\nThe halogens normally form ionic bonds when "joined" with a IA or IIA metal.\n\nTransition metals normally are ionic.\n\nNow for the trick part:  Carbon and nitrogen generally form covalent bonds.  When joined with other elements, they can produce a neutral molecule (CO, CO2).  But they also form polyatomic ions (C03- (carbonate); NO3- (nitrate) ).  \n\nGeneral rule of thumb - IA, IIA, and VIIA atoms will make ionic bonds.  \n\nHope this helps!
32698
GFS Chemicals\n\nhttp://www.gfschemicals.com/chemicals/gfschem-5018.asp
64690
NA2SO4,KOH,AGCL,CA(NO3)2 ARE SOLUBLE.AND HG2BR2 AND CDS IS INSOLUBLE.
426762
you know its ionic because Na is a metal while Cl isnt. a metal and nonmetal almost always from an ionic bond. to draw a lewis digram, determine how many valence electons are in each and draw the diagram.. its kinda hard to explain without actually drawing it.. consult a chem bk.
1172979
Lead II Nitride\n\nCa(BrO2)2
317042
www.chemfinder.com might help
293591
Group 1-alkali metals Group 2- alkaline earth metals Groups 3-12-transition metals Group 17-Halogens Group 18- Noble gasses
1035816
Try adding another compound that will bind to either the sodium or chlorine atom.
760405
well family 13 has B and Al.  they are metaloids that are great lewis acids.  they have interesting bonding strategies that defy the normal octet rule.
376102
The Halogens are very, very reactive chemicals, and tend to hook up and form salts with the other elements rather than hanging around in a pure elemental form.  They tend to pick up extra charge very well which makes them prime candidates for bonding.
520225
iodized salt or baking soda
922294
1) NH(4)Cl - Ammonium chloride\n\n2) HClO(2) - Chlorous acid\n\n3) Ca(BrO(3))2 - Calcium Bromate\n\n4) BeSO(4) - Beryllium sulphate\n\n5) (NH(4)) (3)N - Ammonium nitride\n\n6) RbI - Rubidium iodide
127454
If such a compound existed, it would be ionic. Calcium (IV) Chloride.\n\nBut it won't exist, particularly as an ionic compound. You're not going to be able to pull the p electrons from the calcium without a fight and chlorine isn't strong enough (or even fluorine, for that matter). Maybe you can achieve the species in the gas phase ... I don't know.\n\nIf it's covalent, what possible structure could it have? What do the bonding orbitals look like?
784949
Additional information is needed.  The mixture could contain one atom of Potassium and the rest Sodium or the reverse.\n\nThe total mass of the sample does not tell you anything about the relative mix.