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2 cards from this section. Quick, good the night before a test.
What does H₂O represent?
Think about the components of water.
How many atoms are present in CO₂?
Look at the subscripts in the formula.
What does the subscript in H₂O indicate?
Focus on the number before the atom’s symbol.
Is CO₂ made up of 2 carbon atoms?
Check how many oxygen atoms are indicated.
A compound contains 3 carbon atoms, 8 hydrogen atoms, and 3 oxygen atoms. What is the chemical formula?
Write the atoms with their respective subscripts.
Sulfur hexafluoride contains 1 sulfur atom and 6 fluorine atoms. What is its chemical formula?
Use the chemical symbols to combine them appropriately.
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