[icarus-custom-lesson-iframe src=”https://phet.colorado.edu/sims/html/balancing-chemical-equations/latest/balancing-chemical-equations_en.html” title=”PhET Interactive Simulations | L24 Balancing Chemical Equations”]
Using HTML-based balancing-chemical-equations_en.html Applet, solve the following assignments by guessing the right stoichiometry or coefficients of reacting (both reactants and products) species to end up with a balanced chemical equation.
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Question 1 of 12
1. Question
Figure 11 shows the transformation of CO into C and CO2.
Figure 11: The transformation of CO into C and CO2. Upload a screenshot or a text file of your answer
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Question 2 of 12
2. Question
Figure 12 shows the hydrogenation of formaldehyde (methanal) into methanol.
Figure 12: Hydrogenation of formaldehyde (methanal) into methanol. Upload a screenshot or a text file of your answer
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Question 3 of 12
3. Question
Figure 13 shows the hydration of phosphorus into phosphine (PH3). In literature, it is usually reported as decomposition of phosphine into P4 and H2.
Figure 13: Formation of phosphine (PH3) from its constituents P4 and H2. Upload a screenshot or a text file of your answer
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Question 4 of 12
4. Question
Figure 14 shows the dissociation of ammonia (NH3) into N2 and H2.
Figure 14: The dissociation of ammonia (NH3) into N2 and H2. Upload a screenshot or a text file of your answer
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Question 5 of 12
5. Question
Figure 15 shows the burning or oxidation of carbon di-sulfide into CO2 and SO2.
Figure 15: The burning or oxidation carbon di-sulfide into CO2 and SO2. Upload a screenshot or a text file of your answer
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Question 6 of 12
6. Question
Figure 16 shows the chlorination of ethane into chloro-ethane and a by-product HCl.
Figure 16: The chlorination of ethane into chloro-ethane and a by-product HCl. Upload a screenshot or a text file of your answer
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Question 7 of 12
7. Question
Figure 17 shows the oxidation-reduction (redox) reaction for conversion of SO2 and H2 into S and H2O. SO2 is an oxidizing agent (i.e., being reduced), H2 is the first reducing agent (being oxidized) and O2 is the second reducing agent (i.e., being oxidized).
Figure 17: Conversion of SO2 into S with the aid of H2. Upload a screenshot or a text file of your answer
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Question 8 of 12
8. Question
Figure 18 shows reaction of C with H2O to form CH4 and CO2. Notice that carbon is both an oxidizing and a reducing agent (disproportionation or dismutation).
Figure 18: Reaction of C with H2O to produce CH4 and CO2. Upload a screenshot or a text file of your answer
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Question 9 of 12
9. Question
Figure 19 shows reaction of ammonia with oxygen to produce nitric oxide and water.
Figure 19: Reaction of ammonia with oxygen to produced nitric oxide and water. Upload a screenshot or a text file of your answer
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Question 10 of 12
10. Question
Figure 20 shows reaction of carbon dioxide with water to produce ethane and oxygen.
Figure 20: Reaction of carbon dioxide with water to produce ethane and oxygen. Upload a screenshot or a text file of your answer
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Question 11 of 12
11. Question
Figure 21 shows reaction of carbon dioxide with water to produce ethanol and oxygen.
Figure 21: Reaction of carbon dioxide with water to produce ethanol and oxygen. Upload a screenshot or a text file of your answer
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Question 12 of 12
12. Question
Figure 22 shows reaction of acetylene oxidation into carbon dioxide and water.
Figure 22: Reaction of acetylene oxidation into carbon dioxide and water. Upload a screenshot or a text file of your answer
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