Balance Chemical Equations

Flashcard
•
Chemistry
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the first step in balancing a chemical equation?
Back
Identify the number of atoms of each element in the reactants and products.
2.
FLASHCARD QUESTION
Front
What does the Law of Conservation of Mass state?
Back
Matter cannot be gained or lost in a chemical reaction.
3.
FLASHCARD QUESTION
Front
How do you balance the equation: Fe + O2 → Fe2O3?
Back
4Fe + 3O2 → 2Fe2O3.
4.
FLASHCARD QUESTION
Front
What is the balanced form of the equation AlCl3 + NaOH → Al(OH)3 + NaCl?
Back
1,3,1,3.
5.
FLASHCARD QUESTION
Front
How many atoms of carbon are in C6H12O6?
Back
6.
6.
FLASHCARD QUESTION
Front
What is a coefficient in a chemical equation?
Back
A number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved.
7.
FLASHCARD QUESTION
Front
What is the purpose of balancing chemical equations?
Back
To ensure that the same number of each type of atom appears on both sides of the equation.
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