Give the names of the elements present in the following compounds:
$(a)$ Quick lime
$(b)$ Hydrogen bromide
$(c)$ Baking powder
$(d)$ Potassium sulphate
$(a)$ Quick lime
$(b)$ Hydrogen bromide
$(c)$ Baking powder
$(d)$ Potassium sulphate
(N/A) Quick lime is Calcium oxide $(CaO)$. The elements present are Calcium $(Ca)$ and Oxygen $(O)$.
$(b)$ Hydrogen bromide is $(HBr)$. The elements present are Hydrogen $(H)$ and Bromine $(Br)$.
$(c)$ Baking powder is Sodium hydrogen carbonate $(NaHCO_3)$. The elements present are Sodium $(Na)$,Hydrogen $(H)$,Carbon $(C)$,and Oxygen $(O)$.
$(d)$ Potassium sulphate is $(K_2SO_4)$. The elements present are Potassium $(K)$,Sulphur $(S)$,and Oxygen $(O)$.
$(b)$ Hydrogen bromide is $(HBr)$. The elements present are Hydrogen $(H)$ and Bromine $(Br)$.
$(c)$ Baking powder is Sodium hydrogen carbonate $(NaHCO_3)$. The elements present are Sodium $(Na)$,Hydrogen $(H)$,Carbon $(C)$,and Oxygen $(O)$.
$(d)$ Potassium sulphate is $(K_2SO_4)$. The elements present are Potassium $(K)$,Sulphur $(S)$,and Oxygen $(O)$.
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Similar Questions
Chemical formula of a compound is a symbolic representation of its composition. We should know the following points to write the chemical formulae of chemical compounds:
$(i)$ Symbols of the combining elements.
$(ii)$ Valency of the combining elements.
In order to know the valency,we must calculate the valence electrons present in the atoms.
The electrons present in the outermost shell or valence shell are called valence electrons. The number of electrons in the atoms of some elements are given below. The elements which have one valency are called monovalent.
$(a)$ What is a chemical formula?
$(b)$ Which main points we must know to write the chemical formula of compounds?
$(c)$ Which values do we find associated with the use of formula for various things in daily life?
$(i)$ Symbols of the combining elements.
$(ii)$ Valency of the combining elements.
In order to know the valency,we must calculate the valence electrons present in the atoms.
The electrons present in the outermost shell or valence shell are called valence electrons. The number of electrons in the atoms of some elements are given below. The elements which have one valency are called monovalent.
$(a)$ What is a chemical formula?
$(b)$ Which main points we must know to write the chemical formula of compounds?
$(c)$ Which values do we find associated with the use of formula for various things in daily life?
Medium
View SolutionWrite the molecular formulae for the following compounds:
$(a)$ Copper $(II)$ bromide
$(b)$ Aluminium $(III)$ nitrate
$(c)$ Calcium $(II)$ phosphate
$(d)$ Iron $(III)$ sulphide
$(e)$ Mercury $(II)$ chloride
$(f)$ Magnesium $(II)$ acetate
$(a)$ Copper $(II)$ bromide
$(b)$ Aluminium $(III)$ nitrate
$(c)$ Calcium $(II)$ phosphate
$(d)$ Iron $(III)$ sulphide
$(e)$ Mercury $(II)$ chloride
$(f)$ Magnesium $(II)$ acetate
Medium
View SolutionDerive the molecular formula for Copper $(II)$ Bromide.
Difficult
View SolutionWhich of the following represents a correct chemical formula? Name it.
Medium
View SolutionGive the chemical formulae for the following compounds and compute the ratio by mass of the combining elements in each one of them:
$(a)$ Ammonia
$(b)$ Carbon monoxide
$(c)$ Hydrogen chloride
$(d)$ Aluminium fluoride
$(e)$ Magnesium sulphide
$(a)$ Ammonia
$(b)$ Carbon monoxide
$(c)$ Hydrogen chloride
$(d)$ Aluminium fluoride
$(e)$ Magnesium sulphide
Medium
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