give three properties of brass to show that it is a mixture?
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Brass is an alloy of copper and zinc, in proportions which can be varied to achieve varying mechanical and electrical properties.
It is a substitutional alloy: atoms of the two constituents may replace each other within the same crystal structure.
In contrast, bronze is an alloy of copper and tin. Both bronze and brass may include small proportions of a range of other elements including arsenic, lead, phosphorus, aluminium, manganese, and silicon. The distinction is largely historical. Modern practice in museums and archaeologyincreasingly avoids both terms for historical objects in favour of the all-embracing "copper alloy".
Brass is used for decoration for its bright gold-like appearance; for applications where low friction is required such as locks, gears, bearings, doorknobs, ammunition casings and valves; for plumbing and electrical applications; and extensively in brass musical instruments such as horns and bells where a combination of high workability (historically with hand tools) and durability is desired. It is also used in zippers. Brass is often used in situations in which it is important that sparksnot be struck, such as in fittings and tools used near flammable or explosive materials
It is a substitutional alloy: atoms of the two constituents may replace each other within the same crystal structure.
In contrast, bronze is an alloy of copper and tin. Both bronze and brass may include small proportions of a range of other elements including arsenic, lead, phosphorus, aluminium, manganese, and silicon. The distinction is largely historical. Modern practice in museums and archaeologyincreasingly avoids both terms for historical objects in favour of the all-embracing "copper alloy".
Brass is used for decoration for its bright gold-like appearance; for applications where low friction is required such as locks, gears, bearings, doorknobs, ammunition casings and valves; for plumbing and electrical applications; and extensively in brass musical instruments such as horns and bells where a combination of high workability (historically with hand tools) and durability is desired. It is also used in zippers. Brass is often used in situations in which it is important that sparksnot be struck, such as in fittings and tools used near flammable or explosive materials
cupcake649:
but its not telling that brass is a mixture
Answered by
66
Brass is a mixture because:
- Brass does not have strong chemical bond between its elements
- It does not have definite chemical composition which a compound has.
- In Brass copper and zinc are not mixed in definite proportions.
- The components of brass can be separated by physical methods.
Thus it is has to be a mixture.
Hope it helps you
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