MiniTesting > Chemistry > Metals

Metals

Test created at: 2020-01-16 by Adriele; number of questions: 15. Last time modified: 2020-01-19.
If you are not ready, you could first read the literature (https://en.wikipedia.org/wiki/Metal, new window) and do the test later.

Average score for this test is: 67% calculated only from first attempts (1 pc.), last one was: 2021-06-08.

Q1: What is true about metals?






Good answeres: 1

Q2: Which of the chemical elements is NOT a metal?






Good answeres: 1

Q3: Approximately how many percent of the Earth's crust is composed by the metals?


Image author: http://eng-version.2dox.pl/our-planet-composition/





Good answeres: 1

Q4: The solid or liquid state of metals largely originates in the capacity of the metal atoms involved to readily "gain" their outer shell electrons.



Good answeres: 1

Q5: When reacting with oxygen, most of the metals will form:


Image author: https://en.wikipedia.org/wiki/Aluminium#/media/File:Aluminium-4.jpg




Good answeres: 1

Q6: Which metal does NOT react with oxygen at all?






Good answeres: 1

Q7: What is an alloy?





Good answeres: 1

Q8: The purpose/purposes of making alloys is generally to make the metals:






Good answeres: 4

Q9: The usual formulation of the alloy nickel silver is 60% copper, 20% nickel and 20% zinc



Good answeres: 1

Q10: What are the main characteristics of a heavy metal?






Good answeres: 1

Q11: Which statement is true?



Good answeres: 1

Q12: During the World War I, major governments demanded large shipments of ________ for light strong airframes.


Image author: https://en.wikipedia.org/wiki/Hall_XFH#/media/File:Hall_XFH-1.jpg





Good answeres: 1

Q13: Shortly after the World War II, super alloys were developed for use in:






Good answeres: 1

Q14: 95% of the energy used to make aluminium from bauxite ore is saved by using recycled material.


Image author: https://www.theverge.com/2019/9/12/20862775/aluminum-recycling-water-tech-plastic-manufacturing-cocacola-pepsi-apple


Good answeres: 1

Q15: Regarding to heat conductivity of metal is correct to affirm that:






Good answeres: 1

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