Alloys Worksheet Questions
Authored by PXScience Teacher
Chemistry
12th Grade
Used 1+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is bronze or rose gold?
Pure metals
Nonmetals
Alloys (mixtures of metals)
Ionic compounds
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why might we melt together two different types of metals?
To create a mixture with enhanced properties
To reduce their atomic numbers
To convert metals into nonmetals
To purify them into a single element
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the IB Chemistry guide, which statement best characterizes alloys?
They are mixtures of a metal with other metals or non-metals and often have enhanced properties
They are pure elements with fixed compositions
They are ionic compounds formed from metals and nonmetals
They are covalent molecules with directional bonding
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The properties of alloys are explained in terms of which type of bonding?
Non-directional metallic bonding with delocalized electrons
Directional covalent bonding
Ionic bonding in a rigid lattice
Hydrogen bonding
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which of the following are common examples of alloys?
Bronze
Brass
Stainless steel
Copper
Sodium chloride
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are alloys more correctly described as mixtures rather than as compounds?
Their compositions can vary and the constituent elements retain metallic bonding
They have fixed stoichiometric ratios and form new chemical bonds
They consist of discrete covalent molecules with set formulas
They are ionic salts composed of cations and anions
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Why might we make gold alloys? Consider the collage showing jars of differently colored metal beads, a pie chart labeled GOLD that names COPPER, SILVER, and ZINC as alloy components in 14KT GOLD, and small gold jewelry findings.
To increase hardness and durability for jewelry use
To change the color appearance of gold
To reduce cost by mixing in less expensive metals
To increase purity to 24 karats
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