Semester Exam Review
Authored by Mercedita Ampong
Chemistry
10th Grade
NGSS covered
Used 4+ times
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40 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following represents the correct electron configuration for chlorine (Cl)?
A. 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 4p^6 5s^2
B. 1s^2 2s^2 2p^6 3s^2 3p^5
C. 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1
D. 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 4p^5
Tags
NGSS.HS-PS1-1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the name of the compound with the formula PCl5?
A. Phosphorus chloride
B. Phosphorus pentachloride
C. Phosphorus chlorate
D.Phosphorus pentoxide
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A
B
C
D
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An element has two isotopes with masses of 10 amu and 11 amu. If their abundances are 70% and 30%, respectively, what is the average atomic mass?
A. 10.1 amu
B. 10.3 amu
C. 10.5 amu
D. 10.7 amu
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Henry, David, and Ethan are having a debate about chemistry. They are stuck on a question and need your help. Can you tell them what is the intermolecular force in NH3?
dipole-dipole
london dispersion force
hydrogen bonding
ionic bond
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the electron dot structure for oxygen (O)?
Tags
NGSS.HS-PS1-1
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Imagine Lily, Benjamin, and Aiden are playing a game of 'Guess the Element' in their chemistry class. Lily picks an element and gives a clue: 'My element is essential for life and its atomic number is the same as the number of legs on an octopus.' What is the atomic number of Lily's element?
32
16
4
8
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