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Answer:</h3>
B) 4H₂(g) + O₂(g) ⟶ 2H₂O(l)
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Explanation:</h3>
- Chemical reactions occur when compounds or elements combine to form new compounds or other elements.
- Chemical reactions may be classified into various types which include synthesis reactions, replacement reaction, decomposition reactions, and precipitation reactions among others.
- In our case, we were supposed to identify a synthesis reaction.
- Thus, we need to know what is a synthesis reaction.
- A synthesis reaction is a reaction that occurs when two elements or small compounds combine to generate a large compound.
- In this case, B is the choice that shows a synthesis reaction where hydrogen gas combines with oxygen gas to yield water.
Since no choices are given, I would just give the 6 possible tetrahedron structures of silicate minerals. Then, it will be up to you to distinguish which one fits to your choices.
1. Isolated tetrahedra - they are separated by positive charges. An example would be olivine.
2. Ringed tetrahedra - they are linked together by positive charges, like that of tourmaline.
3. Tetrahedra - oxygen is shared by two neighbors like that of the pyroxene family.
4. Double chains/Ribbons - example whould be the amphibole family
5. Silica Sheets - when oxygen is shared by three adjacent molecules like the micas and the clay minerals.
6. Three-dimensional framework - four oxygen atoms are linked to other tetrahedra like feldspar and quartz.