Why do ionic compounds have high melting points?
Why do ionic compounds have high melting points? Ionic compounds have strong electrostatic forces of attraction between the ions. Therefore, it requires a lot of energy to overcome these forces. …
What would you observe when zinc is added to a solution of iron (II) sulphate ? Write the chemical reaction that takes place.
What would you observe when zinc is added to a solution of iron (II) sulphate ? Write the chemical reaction that takes place. Zinc is more reactive than iron. Therefore, …
Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Write the chemical reaction when iron reacts with dilute H₂SO4.
Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Write the chemical reaction when iron reacts with dilute H₂SO4. Hydrogen gas is evolved when dilute …
Why is sodium kept immersed in kerosene oil?
Why is sodium kept immersed in kerosene oil? Sodium is a very reactive metal. It explosively reacts with air as well as water. Hence, it catches fire if kept in …
How do metals and non-metals react?
How do metals and non-metals react? We are familiar with the fact that the atoms of all elements, except noble gases, have an incomplete outermost shell. Consequently, most elements are …
What happens when Metals React with Acids ?
What happens when Metals React with Acids ? The highly reactive metals react with dilute acid to displace hydrogen from acid. The reactivity of different metals is different with same …
What happens when Metals React with Water?
What happens when Metals React with Water? Metals react with water to produce metal oxide and hydrogen gas. Metal oxides that are soluble in water dissolve in it to form …
What are Metalloids?
What are Metalloids? The metalloids or semi metals can be defined as those elements which exhibit characteristics of both metals and non-metals. They are all solids, but not lustrous, and …
What are Non-metals?
What are Non-metals? The elements (for example, carbon and oxygen) that are not metals are known as non-metals. Non-metals have high ionisation energies and electronegativities. They are generally poor conductors …
What are Metals ?
What are Metals ? Elements whose atoms have small number of electrons in the outermost shell and have tendency to form positive ions in chemical reactions by losing electrons are …