Electrons and protons
Answer:A
Plants combine water and Carbon dioxide from the air to make glucose for themselves, and giving off oxygen in the process. So CO2 and H2O would be on ther reactant side (left) with O2 and C6H12O6 being on the product side (right).
2H2+O2→2H2O
We have to be aware that the number of atoms are the same on both reactant side and product side.
<span>(3) Atomic masses are a weighted average of the naturally occurring isotopes.
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Here, we found this answer my looking at the key words 'naturally occurring isotopes'
An isotope is a different amount of neutrons, making the atomic mass change.
The hydrogen will react with 12 g B
Mass of B = 3.3 g H_2 × (3.6 g B/1.0 g H_2) = 12 g B
