Pergunta
CHOOSE 3 and DECIDE IETHEY ARE COVALENT or IONIC H+H=H [1] Mg+Cl2=MgCl2 [2] 2C+2H2=C2H4 [3] 4K+O2=2K2O [4] 2Ca+O2=2CaO 4Al+3O2=2Al2O3 [6] 2H2+O2=2H2O Cl+Cl=Cl2 [B] H2+Cl2=2HCl2 [9] 2Na+Cl2=2NaCl 3H2+2N=2NH3 2H2+C=CH4 [12] O2+C=CO2 [13] Al+3F=AlF3 [14]
Solução
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FabrícioVeterano · Tutor por 10 anos
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<br />1. Covalent<br />2. Ionic<br />3. Covalent<br />4. Ionic<br />5. Ionic<br />6. Ionic<br />7. Covalent<br />8. Covalent<br />9. Covalent<br />10. Ionic<br />11. Covalent<br />12. Covalent<br />13. Covalent<br />14. Ionic
Explicação
To determine whether a chemical reaction is covalent or ionic, we need to look at the types of elements involved and the nature of the bond formed.<br /><br />1. $H+H=H$: This is a covalent bond because both hydrogen atoms are nonmetals and they share electrons to form a molecule of hydrogen.<br /><br />2. $Mg+Cl2=MgCl2$: This is an ionic bond because magnesium is a metal and chlorine is a nonmetal. Magnesium loses electrons to chlorine, forming an ionic compound.<br /><br />3. $2C+2H2=C2H4$: This is a covalent bond because both carbon and hydrogen are nonmetals and they share electrons to form a molecule of ethylene.<br /><br />4. $4K+O2=2K2O$: This is an ionic bond because potassium is a metal and oxygen is a nonmetal. Potassium loses electrons to oxygen, forming an ionic compound.<br /><br />5. $2Ca+O2=2CaO$: This is an ionic bond because calcium is a metal and oxygen is a nonmetal. Calcium loses electrons to oxygen, forming an ionic compound.<br /><br />6. $4Al+3O2=2Al2O3$: This is an ionic bond because aluminum is a metal and oxygen is a nonmetal. Aluminum loses electrons to oxygen, forming an ionic compound.<br /><br />7. $2H2+O2=2H2O$: This is a covalent bond because both hydrogen and oxygen are nonmetals and they share electrons to form a molecule of water.<br /><br />8. $Cl+Cl=Cl2$: This is a covalent bond because both chlorine atoms are nonmetals and they share electrons to form a molecule of chlorine.<br /><br />9. $H2+Cl2=2HCl$: This is a covalent bond because both hydrogen and chlorine are nonmetals and they share electrons to form a molecule of hydrogen chloride.<br /><br />10. $2Na+Cl2=2NaCl$: This is an ionic bond because sodium is a metal and chlorine is a nonmetal. Sodium loses electrons to chlorine, forming an ionic compound.<br /><br />11. $3H2+2N=2NH3$: This is a covalent bond because both hydrogen and nitrogen are nonmetals and they share electrons to form a molecule of ammonia.<br /><br />12. $2H2+C=CH4$: This is a covalent bond because both hydrogen and carbon are nonmetals and they share electrons to form a molecule of methane.<br /><br />13. $O2+C=CO2$: This is a covalent bond because both oxygen and carbon are nonmetals and they share electrons to form a molecule of carbon dioxide.<br /><br />14. $Al+3F=AlF3$: This is an ionic bond because aluminum is a metal and fluorine is a nonmetal. Aluminum loses electrons to fluorine, forming an ionic compound.
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