Chad Said:

Could someone please help me with balancing equations in chemistry?

We Answered:

2NaCl --> 2Na + Cl2 Decomposition (this reaction doesn't really ever happen, let's pretend it does)
Cu + HNO3 --> Cu(NO3)2 + NO + H2O (it has to be nitric acid, Nitrite doesn't magically transform into Nitrate unless bacteria is present)
Cu + H+ + NO3 --> Cu2+ + 2NO3- + H2O this is impossible, I'm in AP Chemistry and never in my life have I seen a reaction where an acid and a metal are mixed to create metal nitrate and water are made let alone NO also being produced. this isn't Single replacemet, Metathesis, Electrolysis, electrochemical, redox, I can't determine ite.
4Al + 3O2 -> 2Al2O3
Fe + Pb(NO3)2 No reaction. All Nitrates are soluble in water so no precipitate would form
I2 + NaF --> Also, no reaction. Fluorine is higher than Iodine on the activity series. In a metathesis reaction, Iodine will never, ever, ever, ever replace Fluorine; nothing replaces fluorine. Fluorine replaces everything else. It would be more like F2 + 2NaI --> I2 + 2NaF

Tracy Said:

I can't find worksheets for balancing equations this way: Zn(OH)2 + H3PO4 => ??? Help?

We Answered:

3 Zn(OH)2 + 2 H3PO4 = Zn3(PO4)2 + 6 H2O
base + acid = salt + water
zinc hydroxide + phosphoric acid = zinc (II) phosphate + water

Ted Said:

Help with balancing equations??

We Answered:

1) 2Fe(s) + 3Cl2(g) --> 2FeCl3(s)
2) 2H2(g) + O2(g) --> 2H2O(l)
3) C2H4(g) + 3O2(g) --> 2CO2(g) + 2H2O(l)

(g) = gas
(l) = liquid
(s) = solid

Ivan Said:

balancing equation worksheet?

We Answered:

above is all right

Mildred Said:

What do the brackets mean when Balancing Equations?

We Answered:

these are there states
s=solid
l-liquid
g=gas
aq=aqueous solution(ie dissolved in water/H2O)

and the balanced solution is this

2Na(s) + 2H2O(l) --------->2NaOH(aq) + H2(g)

this is the reaction of alkali metal (sodium/Na) with water,red flames will be seen,heat is emitted.