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. …
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. 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. Hydrogen gas is evolved when dilute …
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? 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 ? 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? 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? 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? 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 ? 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 …