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Transcript
Chemical Equation Interpretations – Match the chemical equation with the appropriate interpretation. __ 1. 2CH4O(l) + O2(g) 2CH2O(l) + 2H2O(l) __ 2. NH2Cl(g) NH2Cl(aq) A. The sulfuric acid dissolved in raindrops of acid rain reacts with the calcium carbonate in seashells and marble structures. This reaction produces calcium sulfate dissolved in water and carbon dioxide gas. __ 3. 2C8H14(l)+23O2(g) 16CO2(g) + 14H2O(l) B. To balance the effect of acid rain, solid calcium oxide has been added to many lakes. It reacts with water to form solid calcium hydroxide, a strong base that is only slightly soluble in water. __ 4. H2SO4(aq) + CaCO3(s) CaSO4(aq) + CO2(g) + H2O(l) C. Chloramine is added to our water supply in very small amounts to kill bacteria. __ 5. Hg(l) Hg(g) D. When octane and oxygen gas are burned in our cards, carbon dioxide and water come out in the exhaust. __ 6. C16H30O2(s) + H2(g) C16H32O2(s) __ 7. CaO(s) + H2O(l) Ca(OH)2 (s) E. Methanol , if ingested, reacts with oxygen to form formaldehyde, which is toxic. Water is also formed in this reaction. F. Liquid mercury evaporates to produce mercury vapor. G. Saturated fatty acids, like palmitic acid, tend to form long solids and clog people’s arteries. These saturated fatty acids can be made from unsaturated fatty acid by adding hydrogen gas. Balancing Chemical Equations – Add coefficients to balance the following equations. 1. _____ Cr + _____ O2 _____ Cr2O3 2. _____ Al + _____ S _____ Al2S3 3. _____ Fe + _____ Cl2 _____ FeCl3 4. _____ Li + _____ O2 _____ Li2O 5. _____ C6H6+ _____ O2 _____ CO2 + _____ H2O 6. _____ KClO3 _____ KCl + _____ O2 7. _____ C2H4O2 + _____ O2 _____ CO2 + _____ H2O 8. _____ V2O5+ _____ CaS _____ CaO + _____ V2S5 9. _____ S8+ _____ O2 _____ SO2 Balancing Chemical Equations – Add coefficients to balance the following equations. 1. _____ Cr + _____ O2 _____ Cr2O3 2. _____ Al + _____ S _____ Al2S3 3. _____ Fe + _____ Cl2 _____ FeCl3 4. _____ Li + _____ O2 _____ Li2O 5. _____ C6H6+ _____ O2 _____ CO2 + _____ H2O 6. _____ KClO3 _____ KCl + _____ O2 7. _____ C2H4O2 + _____ O2 _____ CO2 + _____ H2O 8. _____ V2O5+ _____ CaS _____ CaO + _____ V2S5 9. _____ S8+ _____ O2 _____ SO2 Chemical Equation Interpretations – Match the chemical equation with the appropriate interpretation. __ 1. 2CH4O(l) + O2(g) 2CH2O(l) + 2H2O(l) __ 2. NH2Cl(g) NH2Cl(aq) A. The sulfuric acid dissolved in raindrops of acid rain reacts with the calcium carbonate in seashells and marble structures. This reaction produces calcium sulfate dissolved in water and carbon dioxide gas. __ 3. 2C8H14(l)+23O2(g) 16CO2(g) + 14H2O(l) B. To balance the effect of acid rain, solid calcium oxide has been added to many lakes. It reacts with water to form solid calcium hydroxide, a strong base that is only slightly soluble in water. __ 4. H2SO4(aq) + CaCO3(s) CaSO4(aq) + CO2(g) + H2O(l) C. Chloramine is added to our water supply in very small amounts to kill bacteria. __ 5. Hg(l) Hg(g) __ 6. C16H30O2(s) + H2(g) C16H32O2(s) __ 7. CaO(s) + H2O(l) Ca(OH)2 (s) D. When octane and oxygen gas are burned in our cards, carbon dioxide and water come out in the exhaust. E. Methanol , if ingested, reacts with oxygen to form formaldehyde, which is toxic. Water is also formed in this reaction. F. Liquid mercury evaporates to produce mercury vapor. G. Saturated fatty acids, like palmitic acid, tend to form long solids and clog people’s arteries. These saturated fatty acids can be made from unsaturated fatty acid by adding hydrogen gas.