Subscripts and Coefficients Practice 2022
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What do subscripts in a chemical formula represent?
Back
Subscripts indicate the number of atoms of each element in a molecule. For example, in H₂O, the '2' indicates there are 2 hydrogen atoms.
2.
FLASHCARD QUESTION
Front
What do coefficients in a chemical equation represent?
Back
Coefficients indicate the number of molecules or moles of a substance. For example, in 2H₂O, the '2' means there are 2 molecules of water.
3.
FLASHCARD QUESTION
Front
How many atoms of Sulfur are in H₂SO₄?
Back
There is 1 atom of Sulfur in H₂SO₄.
4.
FLASHCARD QUESTION
Front
How many total atoms are in one molecule of H₂SO₄?
Back
There are 7 total atoms in H₂SO₄ (2 H, 1 S, 4 O).
5.
FLASHCARD QUESTION
Front
What is the product of the reaction between N₂ and H₂?
Back
The product is NH₃ (ammonia).
6.
FLASHCARD QUESTION
Front
How many Sodium (Na) atoms are in 6NaCl?
Back
There are 6 Sodium (Na) atoms in 6NaCl.
7.
FLASHCARD QUESTION
Front
How many atoms of Hydrogen are in H₂O?
Back
There are 2 atoms of Hydrogen in H₂O.
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