Which of the following solids uses a "sea" of electrons to hold its shape?

8th Grade Comp 2

Quiz
•
Chemistry
•
7th Grade
•
Hard

Sierra Leggett
Used 1+ times
FREE Resource
46 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mn (s)
H₂O (s)
NaCl (s)
H₂ (s)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement best describes metallic bonding?
It is the electrostatic interaction between the positive metal ions and delocalized electrons.
It is the electrostatic interaction between the electrons and delocalized protons.
It is delocalized electrons.
It is delocalized protons.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is FALSE when describing the properties of a metal due to its “sea of electrons” bonding model?
Metals are great conductors because their electrons are free to flow throughout the material.
Metals are malleable because bonds can be easily broken and reformed.
Metals have a low boiling point because metal atoms are weakly bonded to one another and have weak attractive forces.
Metals are shiny because light cannot penetrate the surface of the metal and are therefore reflected off the surface.
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the molar mass of barium bromide?
1.72 g/mol
297.1 g/mol
217.2 g/mol
354.6 g/mol
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
You set up an experiment to react 1.00 g lead (Pb) and 1.00 g sulfur (S). Which of the two samples contains more atoms?
There are more atoms of S than Pb.
There are more atoms of Pb than S.
There are equal numbers of atoms in both samples.
Can’t determine because moles of each compound are not provided.
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
How many molecules are present in 22 moles of CO₂?
44 molecules
6.35 x 10²³ molecules
968 molecules
1.32 x 10²⁵ molecules
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
I have 2.3 mols of lithium chloride. How many grams of lithium chloride do I have?
2.3 grams
97.5 grams
42.39 grams
0.05 grams
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