Counting Atoms
Flashcard
•
Science
•
9th - 12th Grade
•
Hard
Wayground Content
FREE Resource
Student preview

15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
What is the formula to calculate the number of atoms in a compound?
Back
To calculate the number of atoms in a compound, multiply the subscript of each element by the coefficient in front of the compound and sum them up.
2.
FLASHCARD QUESTION
Front
How many total atoms are in the compound 3(NH₄)₂CrO₄?
Back
24 total atoms (3 * (2 H + 1 N + 4 O) = 24).
3.
FLASHCARD QUESTION
Front
What does the subscript in a chemical formula represent?
Back
The subscript indicates the number of atoms of the element in one molecule of the compound.
4.
FLASHCARD QUESTION
Front
How many nitrogen atoms are in (NH₄)₂CrO₄?
Back
There are 2 nitrogen atoms.
5.
FLASHCARD QUESTION
Front
What is the significance of the coefficient in a chemical formula?
Back
The coefficient indicates how many molecules of the compound are present.
6.
FLASHCARD QUESTION
Front
How many oxygen atoms are in Al₂(SO₄)₃?
Back
There are 12 oxygen atoms.
7.
FLASHCARD QUESTION
Front
In the compound H₂C₃O₄N₅, how many carbon atoms are present?
Back
There are 3 carbon atoms.
Create a free account and access millions of resources
Create resources
Host any resource
Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever
or continue with

Microsoft
%20(1).png)
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?
Similar Resources on Wayground
10 questions
2025 S3/4 CCKS Enzymes
Flashcard
•
8th Grade - University
13 questions
Vocabulary Flashcards LEVEL 4 UNIT 7
Flashcard
•
KG - University
15 questions
Future Progressive
Flashcard
•
9th Grade - University
15 questions
Unit 4 Test Review
Flashcard
•
10th Grade - University
10 questions
Twelfth Night
Flashcard
•
10th Grade
11 questions
Genetic Engineering Concepts
Flashcard
•
11th Grade - University
10 questions
Body Parts for Kindergarten
Flashcard
•
KG
Popular Resources on Wayground
20 questions
Brand Labels
Quiz
•
5th - 12th Grade
11 questions
NEASC Extended Advisory
Lesson
•
9th - 12th Grade
10 questions
Ice Breaker Trivia: Food from Around the World
Quiz
•
3rd - 12th Grade
10 questions
Boomer ⚡ Zoomer - Holiday Movies
Quiz
•
KG - University
25 questions
Multiplication Facts
Quiz
•
5th Grade
22 questions
Adding Integers
Quiz
•
6th Grade
10 questions
Multiplication and Division Unknowns
Quiz
•
3rd Grade
20 questions
Multiplying and Dividing Integers
Quiz
•
7th Grade
Discover more resources for Science
10 questions
Exploring Newton's Laws of Motion
Interactive video
•
6th - 10th Grade
10 questions
Exploring the States of Matter
Interactive video
•
6th - 10th Grade
21 questions
Cell Organelles
Quiz
•
9th Grade
22 questions
Cell cycle, mitosis, and cancer
Quiz
•
9th Grade
25 questions
Naming Ionic and Covalent Compounds
Quiz
•
9th Grade
16 questions
Macromolecules Quiz
Quiz
•
10th Grade
10 questions
Exploring Biomes and Ecosystems for Kids
Interactive video
•
6th - 10th Grade
20 questions
The Cell Cycle and Mitosis
Quiz
•
9th Grade