This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
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Answer
2, O = 2
Chemical equations represent chemical reactions. They show the reactants (starting materials) on the left and the products (substances formed) on the right, separated by an arrow (→). The equation must be balanced, meaning the number of atoms of each element is the same on both sides.
Here's an example: The reaction between hydrogen gas (H₂) and oxygen gas (O₂) to form water (H₂O).
Step 1: Write the unbalanced equation: H₂ + O₂ → H₂O
Step 2: Count the atoms of each element on both sides. Left side: H = 2, O = 2 Right side: H = 2, O = 1
Step 3: Balance the oxygen atoms. To get 2 oxygen atoms on the right, place a coefficient of 2 in front of H₂O. H₂ + O₂ → 2H₂O
Step 4: Recount the atoms. Left side: H = 2, O = 2 Right side: H = 4, O = 2
Step 5: Balance the hydrogen atoms. To get 4 hydrogen atoms on the left, place a coefficient of 2 in front of H₂. 2H₂ + O₂ → 2H₂O
Step 6: Final check. Left side: H = 4, O = 2 Right side: H = 4, O = 2 The equation is now balanced.
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Chemical equations represent chemical reactions. They show the reactants (starting materials) on the left and the products (substances formed) on the right, separated by an arrow (→).
This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.