Tutrack test 3
Authored by Kiran Zahid
Chemistry
10th Grade
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26 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best defines a molecule?
A single atom
An aggregate of two or more atoms in a definite arrangement held together by chemical forces
A charged particle
A collection of ions
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the molecular formula of a compound containing 3 carbon atoms and 6 hydrogen atoms?
CH2
C2H4
C3H6
All of the above
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of ion is formed when a neutral atom loses electrons?
Cation
Anion
Molecule
Proton
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fill in the blank: A chloride ion (Cl-) can have a combination of 17 protons, 18 neutrons, and __ electrons.
A) 17
B) 18
C) 19
D) 20
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The correct formula for calcium iodide is:
CaI
CaI₂
Ca₂I
Ca₂I₃
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a property of ionic compounds?
Low melting point
High electrical conductivity in the solid state
High melting point
None of the above
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct name for the compound Al₂S₃?
A) Aluminum sulfate
B) Aluminum sulfur trioxide
C) Aluminum sulfide
D) Aluminum sulfur
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