Pls help ! 1.) pick 5 common alloys. list the name, elements and advantages of the alloy

2.) are all elements in alloys metals? explain.

#1

Used in making of cooking utensils and other architectures.

Used in making heat utensils like heater,oven etc.

Used in making different utensils .

Bronze:-

Used in making medals.

Magnalium:-

Used in making aircraft parts.

#2

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.