The answer should be false. Elements contain only one atom.
The balanced reaction between Hydrogen and Oxygen to form Water:
2H₂ + O₂ → 2H₂O
From the equation it already states that:
2 molecules of Hydrogen H₂ are needed to produce 2 molecules of Water H₂O
So the answer is 2.
Option B.
Answer:J.J. Thomson, he was using a high-vacuum cathode-ray tube
Explanation:(I Googled it)
Ionic bonds generally have higher melting points due to stronger electrostatic interactions.
Answer:
molecules, atoms, or cells
Explanation:
I'm not promising these are right, but I'm guessing on of these.