which is the product obtained when silica dissolves in excess of HF
a) SiF4
b)H2SiF4
c)siF6
d) H2SiF6
a) SiF4
b)H2SiF4
c)siF6
d) H2SiF6
4HF(aq]+SiO2(s]→SiF4(g]↑⏐+2H2O(l]
Explanation: Start by writing the chemical formulas of thereactants, which are
- hydrofluoric acid,HF
- silicon dioxide,SiO2
Do the same for theproducts, which are
- silicon tetrafluoride,SiF4
- water,H2O
Before writing theunbalanced chemical equationfor this reaction, it's important to note that this reaction is actually used todecorate glassby inducing etching patterns on it surface.
Aqueous hydrofluoric acid will react with the glass, which is represented by silicon dioxide, and produce silicon tetrafluoride, a gas that will be given off, and liquid water.
The unbalanced chemical equation will thus be
HF(aq]+SiO2(s]→SiF4(g]↑⏐+H2O(L]
To balance this equation, all you have to do is multiply the hydrofluoric acid by4and the water by2. This will ensure thatall the atomspresent on the reactants' side are accounted for on the products' side.
4HF(aq]+SiO2(s]→SiF4(g]↑⏐+2H2O(l]
I think that this reaction can also produce aqueoushexafluorosilicic acid,H2SiF6, and water.
4HF(aq]+SiO2(s]→SiF4(g]↑⏐+2H2O(l]
Explanation:Start by writing the chemical formulas of thereactants, which are
- hydrofluoric acid,HF
- silicon dioxide,SiO2
Do the same for theproducts, which are
- silicon tetrafluoride,SiF4
- water,H2O
Before writing theunbalanced chemical equationfor this reaction, it's important to note that this reaction is actually used todecorate glassby inducing etching patterns on it surface.
Aqueous hydrofluoric acid will react with the glass, which is represented by silicon dioxide, and produce silicon tetrafluoride, a gas that will be given off, and liquid water.
The unbalanced chemical equation will thus be
HF(aq]+SiO2(s]→SiF4(g]↑⏐+H2O(L]
To balance this equation, all you have to do is multiply the hydrofluoric acid by4and the water by2. This will ensure thatall the atomspresent on the reactants' side are accounted for on the products' side.
4HF(aq]+SiO2(s]→SiF4(g]↑⏐+2H2O(l]
I think that this reaction can also produce aqueoushexafluorosilicic acid,H2SiF6, and water.
