1. When a chunk of dry ice (solid carbon dioxide) is placed out in the air, the solid gradually disappears and a gas is formed above the solid. Does the molecular art drawn below indicate that a chemical or physical change has occurred? Explain your choice. In the illustration below, in the solid CO2 the molecules were held together, and upon exposure to air the molecules became free,explain what happened based on the bonds 2. The inexpensive preparation of nitrogen-containing fertilizers begins
1. When a chunk of dry ice (solid carbon dioxide) is placed out in the air, the solid gradually disappears and a gas is formed above the solid. Does the molecular art drawn below indicate that a chemical or physical change has occurred? Explain your choice. In the illustration below, in the solid CO2 the molecules were held together, and upon exposure to air the molecules became free,explain what happened based on the bonds
2. The inexpensive preparation of nitrogen-containing fertilizers begins with mixing together two elements, hydrogen and nitrogen, at high temperature and pressure in the presence of a metal. Does the molecular art depicted below indicate that a chemical or physical change occurs under these conditions? Explain your
choice and include in your explanation the bonds.
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