Chemical Formulas
Flashcard
•
Science
•
8th Grade
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
What are the substances at the beginning of a chemical equation called?
Back
Reactants
2.
FLASHCARD QUESTION
Front
What do the red numbers in a chemical formula represent?
Back
Coefficients
3.
FLASHCARD QUESTION
Front
How many molecules of methane (CH₄) are there in the formula?
Back
4
4.
FLASHCARD QUESTION
Front
What is the chemical composition of Baking Soda (NaHCO₃)?
Back
1 sodium, 1 hydrogen, 1 carbon, 3 oxygen
5.
FLASHCARD QUESTION
Front
How many phosphorus (P) atoms are in the formula P₄O₁₀?
Back
4
6.
FLASHCARD QUESTION
Front
What is a chemical formula?
Back
A representation of a substance using symbols for its constituent elements.
7.
FLASHCARD QUESTION
Front
What is the difference between a coefficient and a subscript in a chemical formula?
Back
A coefficient indicates the number of molecules, while a subscript indicates the number of atoms of an element in a molecule.
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