Question

A synthesis reaction between a metal and a non metal resulting in formation of an insoluble salt of iron

Answer 1

If an alkali (base) contacts with metal, it produces salt and hydrogen gas.

Explanation:

• For example: Sodium hydroxide produces hydrogen gas and sodium zincate when reacts with zinc metal.
• Sodium aluminate and hydrogen gas are produced when sodium hydroxide contacts with aluminium metal.
• Metal carbonates are generally unsolvable in water. Also, referred to be as limestone a marble, and is used in production of chalks.
• Iron(II) Sulfide or Ferrous sulfide is one of the chemical compound with the chemical formula FeS. Iron sulfides are often iron-deficient non-stoichiometric. These are black, water-insoluble salts.

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2. A synthesis reaction between a metal and a non metal resulting in formation of an insoluble salt of iron: