Biology, asked by jasbiryuvi1, 8 months ago

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1. Symbolic expression for a molecule is called
2. Formula of Iron (111) Carbonate is
3. On heating, hydrated copper sulphate changes its color from
4. Going across a period left to right, atomic size
5. A chemical change involving iron and hydrochloric acid illustrates a
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Answered by Anonymous

Answers:-

This reaction is an example of oxidation reaction , where HCl gets oxidised to H₂ [ removal of Hydrogen ]
Fe + 2HCl ----> FeCl₂ + H₂

Extra information:-

Periodic table:-

The periodic table is a chart that arranges the chemical elements in a useful, logical manner.
Elements are listed in order of increasing atomic number, lined up so elements that exhibit similar properties are arranged in the same row or column as others.

Answered by Anonymous

Answers:-

Symbolic expression for a molecule is called molecular formula.

Hydrated copper sulphate on heating changes its colour from blue to white.

Atomic size gradually decreases from left to right across a period of elements.

Iron = Fe

Hydrochloric acid = HCl

When a metal (Fe) reacts with an acid (HCl) , Hydrogen gas is liberated .

Here is the reaction that takes place :-

This reaction is an example of oxidation reaction , where HCl gets oxidised to H₂ [ removal of Hydrogen ]

Fe + 2HCl ----> FeCl₂ + H₂

The periodic table is a chart that

arranges the chemical elements in a

useful, logical manner.

Elements are listed in order of increasing

atomic number, lined up so elements that

exhibit similar properties are arranged in

the same row or column as others.

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