Homework Help: Honors Chemistry

Posted by Emily on Tuesday, October 13, 2009 at 12:01am.

Can someone check my work please? Thanks :))

2. Write the formulas for the compounds formed between the following:

g. Cu+2 and NO3- (the +2 and - are superscripts, while the 3 is a subscript)

===> I got Cu(NO3)2.

h. NH4 and SO4(2-) (the two 4's are subscripts, and the (2-) is a superscript)

===> I got (NH4)2(SO4).

Honors Chemistry - DrBob222, Tuesday, October 13, 2009 at 12:27am
If I understand correctly, then I would write no reaction for both. If Cu^+2 ion and NO3^- ion are put into the same beaker, then the solution will just have the two ions floating around. They will not interact. You may be studying about solubility, gases, and that type of thing. Generally, there are three reasons why a reaction will proceed (plus oxidation reduction reactions but that's another topic).
a. A precipitate (insoluble material) is formed.
b. a gas is formed.
c. a slightly ionized substance is formed.

Applying those to the two reactions you have, we know they are not gases, they are ionized, and Cu(NO3)2 is soluble, so, no reaction.
Here is a simplified table of solubilities.
http://www.files.chem.vt.edu/RVGS/ACT/notes/solubility_rules.html

Answer this Question

Related Questions

chemistry - what is the formulas for the compounds formed by the following : Al ...
chemistry - Write the formulas of the compounds formed Pb+4 with the following ...
chemistry - Can someone please help me with these? Write formulas for the ...
chemistry - Write formulas for the binary ionic compounds formed between the ...
Ion charge & formulas of ionic compunds-DrBob222 - These are the other ...
Chemistry - Write the binary formulas for the compounds formed from the ...
chemistry - write the formulas and give the names of the compounds formed by the...
chemistry - 1.0 M aqueous solutions of AgNO3 , Cu(NO3 )2 and Au(NO3 ) 3 are ...
Naming Ionic Compounds - Can you please have a look at my questions. Thank you ...
Chemistry - Which of the following pairs of compounds will give a precipitate in...

For Further Reading

First Name:
School Subject:
Answer: