Identify the type of reaction and net ionic equations of the following:
a. Zinc sulfide ore is heated in air producing zinc oxide and sulfur dioxide gas.
b. Calcium phosphate is heated with silicon dioxide and carbon, producing calcium silicate, phosphorus and carbon monoxide.
c. Calcium dihydrogen phosphate reacts with sodium hydrogen carbonate producing calcium phosphate, carbon dioxide, water, and sodium hydrogen phosphate.
d. Sulfur dioxide reacts with water to form sulfurous acid.
e. (NH4)2SO4 (aq) + ZnCl2 (aq) →
From Google:
"Types of Chemical Reactions
Decomposition reaction.
Combination reaction.
Combustion reaction.
Neutralization reaction.
Single displacement reaction.
Double displacement reaction.
Precipitation reaction.
Redox reaction."
@DrBob222 Don't forget chemical reaction
oh wait, im an idoit 🤦♀️XD those are THe TYPES of CHEMICAL reactions....wow I'm slow...
a. The given reaction involves the formation of zinc oxide and sulfur dioxide gas from the heating of zinc sulfide ore in air. This is an example of a combination reaction, where two or more substances combine to form a single product. The net ionic equation for this reaction can be obtained by first writing the balanced molecular equation and then canceling out the spectator ions, if any.
The balanced molecular equation for this reaction is:
ZnS (s) + O2 (g) -> ZnO (s) + SO2 (g)
To write the net ionic equation, we need to determine if any of the species exist in different forms in the reaction. In this case, all species are ionic compounds and exist in their ionic form in the reaction, so there are no spectator ions to cancel out. Therefore, the net ionic equation is the same as the balanced molecular equation:
ZnS (s) + O2 (g) -> ZnO (s) + SO2 (g)
b. The given reaction involves the heating of calcium phosphate with silicon dioxide and carbon, resulting in the formation of calcium silicate, phosphorus, and carbon monoxide. This is an example of a decomposition reaction, where a single compound breaks down into two or more simpler substances.
The balanced molecular equation for this reaction is:
3 Ca3(PO4)2 (s) + 3 SiO2 (s) + 10 C (s) -> 9 CaSiO3 (s) + 6 P (s) + 10 CO (g)
To get the net ionic equation, we need to check if any of the species exist as ions in solution or if they are spectator ions. In this case, all the reactants and products are solid compounds, so there are no ions in solution to consider. Therefore, the net ionic equation is the same as the balanced molecular equation:
3 Ca3(PO4)2 (s) + 3 SiO2 (s) + 10 C (s) -> 9 CaSiO3 (s) + 6 P (s) + 10 CO (g)
c. The given reaction involves the reaction between calcium dihydrogen phosphate and sodium hydrogen carbonate, resulting in the formation of calcium phosphate, carbon dioxide, water, and sodium hydrogen phosphate. This is an example of a double displacement reaction, where the cations and anions of two compounds switch places.
The balanced molecular equation for this reaction is:
Ca(H2PO4)2 (aq) + 2 NaHCO3 (aq) -> CaHPO4 (s) + 2 CO2 (g) + 2 H2O (l) + Na2HPO4 (aq)
To determine the net ionic equation, we need to identify the species that are present as ions in solution. In this case, the only ions present in solution are the phosphate ions (PO4^3-) from calcium dihydrogen phosphate and sodium hydrogen phosphate, and the hydrogen carbonate ions (HCO3-) from sodium hydrogen carbonate. Therefore, the net ionic equation is:
Ca(H2PO4)2 (aq) + 2 HCO3- (aq) -> CaHPO4 (s) + 2 CO2 (g) + 2 H2O (l)
d. The given reaction involves the reaction between sulfur dioxide and water, resulting in the formation of sulfurous acid. This is an example of an acid-base reaction.
The balanced molecular equation for this reaction is:
SO2 (g) + H2O (l) -> H2SO3 (aq)
To write the net ionic equation, we need to determine if any of the species exist as ions in solution. In this case, the sulfur dioxide and water molecules do not ionize in solution, so the molecular equation is also the net ionic equation:
SO2 (g) + H2O (l) -> H2SO3 (aq)
e. The given equation shows the reaction between ammonium sulfate (NH4)2SO4(aq) and zinc chloride ZnCl2(aq). To determine the type of reaction and write the net ionic equation, we need to know if a reaction occurs between the ions present in the two compounds.
To do this, we can break down the compounds into their ions:
(NH4)2SO4 (aq) -> 2 NH4+ (aq) + SO4^2- (aq)
ZnCl2 (aq) -> Zn^2+ (aq) + 2 Cl- (aq)
From the breakdown, we can see that NH4+ and Cl- ions both appear on the reactant and product sides. Therefore, we can identify this as a double displacement reaction. The net ionic equation is obtained by writing only the species that are involved in the reaction:
NH4+ (aq) + Cl- (aq) -> No reaction occurs