Question

Predict the major product for the following reaction. Do not include stereochemistry.

Answer 1

To predict the major products for the given chemical reactions, apply knowledge of double replacement, synthesis, and decomposition reactions. MnCO3 reacts with HI to form MnI2 and CO2; CoO reacts with O2 to form Co2O3; La reacts with O2 to form La2O3.

Step-by-step explanation:

Predicting Products from Chemical Reactions

In the given reactions, we can predict the major products by applying the principles of chemical reactivity and the rules for synthesis reactions and decomposition reactions. For each reaction, we'll consider the types of reactants and the most likely products that would form from them.

1. For the reaction of MnCO3(s) + HI(aq), manganese(II) carbonate reacts with hydroiodic acid. The hydrogen cation from the acid will likely replace the manganese cation, leading to the formation of manganese(II) iodide (MnI2) and carbonic acid (H2CO3), which will then decompose into water (H2O) and carbon dioxide (CO2).
2. For the reaction of CoO(s) + O2(g), cobalt(II) oxide reacts with oxygen gas. This is a synthesis reaction where oxygen will add to the cobalt oxide to potentially form cobalt(III) oxide (Co2O3).
3. The reaction of La(s) + O2(g) involves lanthanum metal and oxygen gas, another synthesis reaction. Lanthanum will react with oxygen to form lanthanum(III) oxide, or La2O3.

Each reaction falls into categories that make the prediction of products straightforward: the first is a double replacement reaction followed by decomposition, and the others are synthesis reactions.