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

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Number 2

The reaction:

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

2 Na + Cl2 = 2 NaCl

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Number 3

The reaction:

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

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Number 4

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

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Number 5

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