Write the chemical formulas of the compounds: A) iron (+3) with chlorine (-1)

Write the chemical formulas of the compounds: A) iron (+3) with chlorine (-1) B) boron (+3) with oxygen (-2) C) phosphorus (+5) with chlorine (-1) D) sodium (+1 ) with gray (-2)

Chemical formulas are a designation of a chemical composition and a compound, using symbols of chemical elements, numbers and other signs (brackets, dashes)

A) Fe + 3Cl = FeCl3 (iron III chloride)
B) 4B + 3O2 = 2B2O3 (boron oxide III)
B) 2P + 5Cl2 = 2PCl5 (phosphorus IV chloride)
D) 2Na + S = Na2S (sodium sulfide)



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