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a. Magnesium and Fluorine
b. Sodium and Fluorine
c. Sodium and Oxygen
d. Aluminium and Iodine
2. Write the chemical formula using the 4-step method for:
a) Magnesium sulphide,
b) Magnesium Fluoride,
c) Hydrogen Bromide and
d) Iron (III) Oxide.

Answer :

50xyz

Answer:

1)
a. MgF₂

b. NaF

c. Na₂O

d. AlI₃

2)

a. MgS

b. MgF₂

c. HBr

d. Fe₂O₃

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