Question

13. What is an alloy? Give the composition of an alloy? Give the composition of an alloy
called magnalium. Give its two uses. (3)
non in the reactivity series of​

Answer 1

Answer:

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Explanation:

An alloy is a mixture or metallic-solid solution composed of two or more elements. Examples of alloys include materials such as brass, pewter, phosphor bronze, amalgam, and steel.

Magnalium is an aluminium alloy with magnesium and small amount of Nickel and Tin.

Uses:-

1. Magnalium is used in making metal mirrors and scientific instruments

2. It is used for making balance beams.

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Answer 2

Answer:

an alloy is a substance prepared by adding other metals(or non-metals) to a base metal in appropriate proportions to obtain certain desirable properties.

Composition of alloy: An alloy may be a solid solution of metal elements (a single phase, where all metallic grains (crystals) are of the same composition) or a mixture of metallic phases (two or more solutions, forming a microstructure of different crystals within the metal).

Composition of magnalium: aluminum (95%) and magnesium(5%)

Uses of magnalium: Aircrafts, scientific tools.