Why do metals form basic oxides?
Metals form basic oxides because they react with oxygen to produce compounds that can neutralize acids.
Why are electrical wires coated with plastic or rubber?
Plastic or rubber is used as an insulating material to prevent the electric current from escaping and causing shocks.
What is the most ductile metal?
Gold is the most ductile metal. A single gram of gold can be drawn into a wire over 2 kilometers long.
Why are non-metals brittle?
Non-metals are brittle because they have a covalent bond structure, which makes them break easily under stress.
What is the reactivity series of metals?
It is a list of metals arranged in the order of their reactivity, from the most reactive (potassium) to the least reactive (gold).
What is the difference between metals and non-metals in terms of their physical properties?
Metals are malleable, ductile, and good conductors of heat and electricity, while non-metals are brittle, poor conductors, and generally lack luster.
Why are metals good conductors of electricity?
Metals have free electrons that allow electricity to pass through them easily.
Why does copper sulfate turn white when heated?
Copper sulfate loses its water of crystallization upon heating, turning from blue (hydrated form) to white (anhydrous form).
What is the water of crystallization?
Water of crystallization refers to water molecules that are chemically bonded within the structure of a salt. Example: Copper sulfate pentahydrate (CuSO₄·5H₂O)
What is a neutral salt?
A neutral salt is formed from the reaction of a strong acid and a strong base, with a pH close to 7. Example: Sodium chloride (NaCl)
Get Social