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Write equations and classify the following reactions:?
Please, I need quick help. You don’t have to answer the following questions, but atleast give me a mini-guide on how to do them. You don’t have to give me the answers at all. What does the question mean by classify? Here are the questions:
Write equations and classify the following reactions:
1) Nitric acid and ammonia
2)Hydrocyanic acid and ammonia
3)Ammonia and acetic acid
4)Sodium Hydroxide and nickel II carbonate
5)Lead acetate and hydrochloric acid
6) Iron III nitrate and sodium hydroxide
You both have different answers……
Simple inorganic reactions can be one of the following:
synthesis (combination) == where there is only one product
decomposition == where there is only one reactant
single replacement == where an element and a compound react to give an element and a compound
double replacement == two different compounds on each side appear to have “swapped” ions. One product must be insoluble in water.
combustion of a hydrocarbon == organic compound burns in O2 to make CO2 and water vapor
1. HNO3 + NH3 –> NH4NO3 … (synthesis – there is only one product)
2. HCN + NH3 –> NH4CN …(ditto)
3. … there’s a pattern …
4. 2NaOH (aq)+ NiCO3(s) –> Ni(OH)2(s) + Na2CO3(aq) … (double replacement, nickel hydroxide is much more insoluble than is nickel carbonate)
5. Pb(C2H3O2)2(aq) + 2HCl(aq) –> PbCl2(s) + 2HC2H3O2(aq) …(double replacement)
6. Fe(NO3)3(aq) + 3NaOH)aq) –> Fe(OH)3(s) + 3NaNO3(aq) … (double replacement)
Notice that in the last three they all produce an insoluble product, denoted by the “solid” state symbol. It is important to include state symbols when writing chemical equations. As for your first three, I didn’t include state symbols because some species could either be in the gas phase or in solution. Your first questions are not clear on that, but double replacement reactions almost always occur in aqueous solution.
As for redox reactions, those can be a separate category, or some of the above reaction types can be redox. Single replacement reactions are always redox, as are combustion of a hydrocarbon. Double replacement reactions are almost never redox. Some synthesis and decomposition reactions can be redox. A redox (short for oxidation – reduction) reaction is one where there is a change in the oxidation state of at least two elements.
Nickel-Cadmium Battery
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