Question

Give the names of the elements present in the following compounds.
1. Quick lime
2. Hydrogen bromide
3. Baking bromide
4. Potassium sulfate

Answer 1

In chemistry an element can be defined as a pure substance which further will not break down by chemical methods and an element consists of equal number of protons in their atomic nuclei. When different elements are combined together then they produce a chemical reaction and form into compounds due to chemical bonds which hold the constituent atoms together.

Complete answer: Elements present in following compounds is discussed as follows:
1. Quick lime: Quick lime can also be known by the name calcium oxide which is represented by the molecular formula$CaO$, hence we can consider that element present in quick lime is Calcium and Oxygen.
2. Hydrogen bromide: It is the heteronuclear diatomic molecular compound represented by the formula $HBr$ kept in the category of hydrogen halide consisting of Hydrogen and Bromine as their elements.
3. Baking bromide: Baking bromide is generally known by the name potassium bromate or bromide of potassium represented by the molecular formula $KBr{{O}_{3}}$. Elements present in this are Potassium, Bromine and Oxygen.
4. Potassium sulfate: Potassium sulfate is generally an inorganic compound also known by the name potash of sulfur and represented by the formula ${{K}_{2}}S{{O}_{4}}$. Hence elements present in it are Potassium, Sulfur and Oxygen.

Note: There are many important uses of the mentioned compounds like quick lime is used as plaster for flooring, hydrogen bromide used as reagent in many reactions, baking bromide used in baking and potassium sulfate is used as fertilizers.