Counting Atoms
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for Sodium Chloride?
Back
NaCl
2.
FLASHCARD QUESTION
Front
How many Sodium (Na) atoms are in 6NaCl?
Back
6
3.
FLASHCARD QUESTION
Front
What does it mean for a chemical equation to be balanced?
Back
A balanced chemical equation has the same number of each type of atom on both sides of the equation.
4.
FLASHCARD QUESTION
Front
Is the equation 2H₂ + O₂ → 2H₂O balanced?
Back
Yes
5.
FLASHCARD QUESTION
Front
How many Carbon (C) atoms are in 2Na₂CO₃?
Back
2
6.
FLASHCARD QUESTION
Front
What is the balanced equation for the reaction of Sodium and Water?
Back
2Na + 2H₂O → 2NaOH + H₂
7.
FLASHCARD QUESTION
Front
What is the coefficient in front of H₂O in the equation 2Na + 2H₂O → 2NaOH + H₂?
Back
2
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