AnswersAZ-Science 8 A SharmaChemical Properties

Compounds Answers

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1
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Which property of metals is the result of light reflecting off the electrons?

A
shiny
B
conductive
C
malleable
D
ductile
2
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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.
3

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.
4

Jake is in chemistry class. He makes a list of the chemicals his instructor described and the properties of each.Silver: bonds with other atoms because of the weak forces of the valence electronsWater: bonds allow for liquid state at room temperature and prevent conductionCarbon: bonds with other atoms through strong shared electrical bondsNiobium: bonds allow for a strong conductivity found in stainless steelWhich is most likely true about the chemicals?

A
Silver and niobium are metals.
B
Water and carbon are metals.
C
Silver and carbon are metals.
D
Water and niobium are metals.
5

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.
6

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.
7

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.
8

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
9

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.
10

A manganese atom is pictured below.

Question illustration
A
1
B
2
C
15
D
24

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