chemistry 1

ionic compounds

100

write the formula for sodium chloride 

( NaCl)

200

write the formula for magnesium oxide 

(MgO)

300

write the formula for aluminum sulfide 

( Al₂S₃)

400

write the formula for calcium  chloride 

( CaCl₂)

500

write the formula for Iron (III) oxide 

(Fe₂O₃)

chemical equation (balanced)

100

balanced the equation CH₄+O₂ --> Co₂+H₂O

Ch₄+2O₂ --> Co₂+2H₂O

200

balanced the equation H₂+O₂ -->H₂O

2H₂+O₂ --> 2H₂O

300

balanced the equation H₂O₂ --> H₂O +O₂

2H₂O₂ --> 2H₂O +O₂

400

balanced the equation N₂+H₂ --> NH₃

N₂+3H₂ --> 2NH₃

500

balanced the equation Fe+O₂ --> Fe₂O₃

4Fe+3O₂ --> 2Fe₂O₃

chemical equation (unbalanced)

100

write the equation  2carbon + 2Hydrogen + 2oxygen --> 2 Carbon dioxide + water 

C₂ + H₂+O₂ --> Co₂+H₂O

200

2 hydrogen + 2 Oxygen --> Water 

h₂+O₂--> H₂O

300

2 hydrogen 2 Oxygen -->  water +2 oxygen 

h₂O₂--> H₂O + O₂ 

molecular compounds

100

write the formula for Sulfur dioxide 

(So₂)

200

write the formula for phosphors pentachlorid

( Pcl₅)

300

write the formula for Dinitrogen monoxide

(N₂O)

400

write the formula for Iondine heptafluoride

(IF₂)

500

write the formula for Carbon tetrachloride

(CCl₄)