Which statement is not correct regarding the reaction: H2 + O2 = H2O A. Hydrogen cans oxygen are reactants
B. This reaction is balanced
C. Water is produced in a reaction
D. H2O molecule is made up of 1 oxygen and 2 hydrogen atoms

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A. Hydrogen cans oxygen are reactants

Explanation:

Oxygen has a charge of -2. Hydrogen has a charge of +1. So it takes two hydrogens to balange the one oxygen hence the H20. So the reaction is balanced, and H20 is indeed made up of 1 oxygen and 2 hydrogen atoms. The equation 2 hydrogen + 1 oxygen (<---reactants) = Water (<--product) So hence Hydrogen cans oxygen is not a true statement. If cans is a misspelling then C would be your answer.

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1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.