Question

Learning task 1 identify the reactant needed in the following chemical equation1. ___ + ___ = Mg(OH)22. ___ + ___ = NaCl3. ___ + ___ = H2SO44. ___ + ___ = Al(PO4)35. ___ + ___ = SO2

Answer 1

Number 1

The complete reaction:

`MgO\text{ + H}_2O\text{ = Mg\lparen OH\rparen}_2`

Magnesium oxide + water

MgO + H2O = Mg(OH)2

------------------

Number 2

The reaction:

`2Na\text{ + Cl}_2\text{ = 2NaCl}`

2 Na + Cl2 = 2 NaCl

------------------

Number 3

The reaction:

`SO_3\text{ + H}_2O\text{ = H}_2SO_4`

-----------------

Number 4

`Al\text{ + PO}_4=\text{ Al\lparen PO}_4)_3`

----------------

Number 5

`S\text{ +O}_2=\text{ SO}_2`