In the equation 2 H2 + O2 → 2 H2O, the H2 molecules are ________ and the H2O molecules are ________.
A. reactants; products
B. products; reactants
C. created; destroyed
D. used; stored
Answer:A
In the equation 2 H2 + O2 → 2 H2O, the H2 molecules are ________ and the H2O molecules are ________.
A. reactants; products B. products; reactants C. created; destroyed D. used; stored