Multiple Choice
Which of the following best describes what happens when C6H12O6 (glucose) is added to water?
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1. Intro to General Chemistry
Chemical Properties
Multiple Choice
Which of the following chemical reactions involves the fewest oxygen atoms in the reactants?
A
2Na + Cl2 → 2NaCl
B
2H2 + O2 → 2H2O
C
2CO + O2 → 2CO2
D
C + O2 → CO2
Verified step by step guidance1
Identify the number of oxygen atoms present in the reactants of each given chemical reaction.
For the reaction \(2Na + Cl_2 \rightarrow 2NaCl\), note that there are no oxygen atoms in the reactants because neither sodium (Na) nor chlorine gas (Cl_2) contains oxygen.
For the reaction \(2H_2 + O_2 \rightarrow 2H_2O\), count the oxygen atoms in the reactants: \(O_2\) contains 2 oxygen atoms.
For the reaction \(2CO + O_2 \rightarrow 2CO_2\), count the oxygen atoms in the reactants: each \(CO\) molecule has 1 oxygen atom, so 2 \(CO\) molecules have 2 oxygen atoms, plus 2 oxygen atoms from \(O_2\), totaling 4 oxygen atoms.
For the reaction \(C + O_2 \rightarrow CO_2\), count the oxygen atoms in the reactants: \(O_2\) contains 2 oxygen atoms.
Compare the total oxygen atoms in the reactants of each reaction to determine which has the fewest.
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