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30 g of hydrogen reacts with 120 g of oxygen to form water.How much water is produced?

136.9 g of copper sulfide breaks apart into sulfur and 111.6 g of copper.How much sulfur is produced?

Sagot :

According to law of conservation of mass.

In a chemical reaction Mass is neither created nor destroyed.

  • Mass of product =Mass of reactant

#1

Mass of water

[tex]\\ \sf\longmapsto 30+120=150g[/tex]

#2

Mass of sulphur:-

[tex]\\ \sf\longmapsto 136.9-111.6=25.3g[/tex]

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