Jawapan

2016-02-12T07:11:56+08:00

jar bg oksigen ialah 16.                  ammonia=NH3

                                                                      14+3(1)

                                                                       17

Air=h2o=1+2(16)

             =33

Karbon dioksida=cO2

                         =12+2(16)

                         =44