B) hydrogen gas burns in air.
explanation: the rest are physical properties.
Answer:
Only the H is unbalanced.
Explanation:
There are 4 H's and 2 of everything else
Answer:
B.Convection
the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Answer:
A.
Explanation:
A) The number of H+ ions in the substance is equal to the number of OH-ions.
Answer:
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