On burning, metals react with oxygen to produce metal oxides which are__________in nature.

Non-metals react with oxygen to produce non- metallic oxides which are________ in nature.

Some metals react with water to produce metal hydroxides and ___________ gas

Metals react with acids and produce metal salts and ____________gas.

When a _______ vessel is exposed to moist air for long, it acquires a dull green coating. The green material is a mixture of copper hydroxide (Cu(OH)2) and copper carbonate (CuCO3).

The following is the reaction

2Cu+H2O+CO2+O2→Cu (OH)2 + CuCO3 moist air

Metals like _____ and ______are soft and can be cut with a knife. Mercury is the only metal which is found in liquid state at room temperature.

Since metals produce ringing sounds, they are said to be ____________

The property of metal by which it can be drawn into wires is called ____________

The property of metals by which they can be beaten into thin sheets is called___________