Substances have both chemical properties and physical properties . A)Which of th
ID: 883705 • Letter: S
Question
Substances have both chemical properties andphysical properties.
A)Which of the following properties of aluminum are chemical properties?
B)Which of the following properties of a piece of wood are physical properties?
In moist air it combines with oxygen to form aluminum oxide. It is a shiny, silvery white metal. It reacts with chlorine to form aluminum chloride It has a mass of 26.98 g.B)Which of the following properties of a piece of wood are physical properties?
It has a mass of 2.3 g. It is rough to touch. It is hard. In burns in air to produce carbon dioxide.Explanation / Answer
(A) : Physical properties of a substance represent physical appearances like colour, hardness, mass, volume, physical state etc.
Hence the following properties are physical properties.
1.It is a shiny, silvery white metal.
2.It has a mass of 26.98 g.
During a chemical reaction, new product(s) is/are formed followed by change
in properties, temperature etc. Hence the following properties are chemical properties as new products are formed.
1.In moist air it combines with oxygen to form aluminum oxide.
2.It reacts with chlorine to form aluminum chloride
(B) : The physical properties of wood are
1.It has a mass of 2.3 g.
2.It is rough to touch.
3.It is hard.