Counting Atoms - Reassessment Practice
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the correct formula for three hydrogen (H), one sulfur (S), and four oxygen (O)?
Back
H₃SO₄
2.
FLASHCARD QUESTION
Front
How many atoms are there TOTAL in H₂SO₄?
Back
7
3.
FLASHCARD QUESTION
Front
What is a subscript in a chemical formula?
Back
A small number below an element symbol that tells the number of atoms of that element.
4.
FLASHCARD QUESTION
Front
How many atoms of Hydrogen are in H₂SO₄?
Back
2
5.
FLASHCARD QUESTION
Front
How many Chlorine atoms are in MgCl₂?
Back
2
6.
FLASHCARD QUESTION
Front
What does the subscript '2' in H₂O represent?
Back
It indicates there are 2 hydrogen atoms.
7.
FLASHCARD QUESTION
Front
What is the total number of atoms in the compound CaCO₃?
Back
5 (1 Calcium, 1 Carbon, 3 Oxygen)
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