AnswersNC-Physical Science Fall 1st 9 WeeksCovalent Bonds

Metallic Bonds Answers

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In metals, the properties of malleability and ductility are explained by the fact that metallic atoms can

A
roll past metallic bonds and form new bonds.
B
roll over without breaking their bonds.
C
conduct electricity by constantly moving electrons.
D
bounce light off of their sea of electrons.
2
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Jasmine is a cook, and she wants to buy new equipment. She is presented with dishes made of copper, clay, plastic, and glass. She selects the copper pot because she does most of her cooking on the stove.Which explains why she most likely chose copper?

A
Copper is shiny and reflects light, which will cook the food.
B
Copper is malleable and can be manipulated to cook food.
C
Copper is ductile and can be stretched to cook the food.
D
Copper is conductive and will absorb heat to cook the food.
3

Naomi is testing the different properties of an unknown solid. Her results are located in the chart. Which statement describes the chemical nature of the bonding in the substance?

Question illustration
A
When chilled, the atoms rolled over each other while still staying together, causing a lower temperature.
B
When heated, the valance electrons increased their speed and transferred the heat from electron to electron.
C
When treated with light, the atoms rolled over each other while still staying together, causing a reflection of light.
D
When treated with an applied force, the valence electrons increased their speed and transferred the change from electron to electron.
4

Which property of metals is the result of light reflecting off the electrons?

A
shiny
B
conductive
C
malleable
D
ductile
5

Metallic bonds are important to how paperclips are both made and used.

Question illustration
A
Conduction is important for making paperclips, and shininess is important for using them.
B
Shininess is important for making paperclips, and ductility is important for using them.
C
Ductility is important for making paperclips, and malleability is important for using them.
D
Malleability is important for making paperclips, and conduction is important for using them.
6

Which statement describes a characteristic of most metals?

A
They can be formed into wires.
B
They cannot be shaped by hammering or pounding.
C
They are liquid at room temperature.
D
They are poor conductors.
7

Three people bought copper items, and they each relied on different properties of copper. Bernie bought a set of dishes that included a copper salad bowl. Nicholas went to the hardware store and bought 12-gauge wire. Matt bought his mother a copper bracelet.Which property most likely attracted each buyer to his item?

A
Bernie relied on conductivity, Nicholas relied on ductility, and Matt relied on malleability.
B
Bernie relied on ductility, Nicholas relied on malleability, and Matt relied on appearance.
C
Bernie relied on malleability, Nicholas relied on ductility, and Matt relied on appearance.
D
Bernie relied on malleability, Nicholas relied on appearance, and Matt relied on conductivity.
8

The electrons between atoms in metallic bonds

A
allow for bonding metals to be reactive.
B
allow for bonding metals to be stable.
C
are stationary and provide durability to the metal.
D
are attracted to the neutrons of the metal.
9

Which metallic properties are caused by atoms rolling over each other in metallic bonds?

A
malleability and ductility
B
shininess and ductility
C
conductivity, malleability, and shininess
D
ductility, conductivity, and malleability
10

Anjuli is looking at four different metal samples on the counter. Three are solid, and one is a liquid. Which statement about the liquid metal is most likely true?

A
The liquid metal is gold.
B
The liquid metal is mercury.
C
The liquid metal was superheated.
D
The liquid metal was supercooled.

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