The answer your looking for would be A
The correct answer is reactants 2Na and 2H₂O and products 2NaOH and 1H₂.
The given unbalanced chemical equation is:
Na (s) + H2O (l) → NaOH (aq) + H₂ (g)
From the equation, it can be seen that there are three atoms of hydrogen on the products side, however, only two on the reactant's side. So, in order to balance the equation, one needs to multiply the sodium hydroxide by 2 to get a total of 4 atoms of hydrogen on the product's side.
This will enable one to readily double the number of molecules of water to get 4 atoms of hydrogen on the reactants side, and then balance the atoms of sodium by multiplying the sodium metal by 2. The balanced equation obtained is:
2Na (s) + 2H₂O (l) → 2NaOH (aq) + H₂ (g)
Substitution reaction<span> (also known as single displacement </span>reaction<span> or single </span>substitution reaction) <span>is a </span>chemical change throughout that one useful cluster in an exceedingly substance<span> is replaced by another </span>useful cluster<span>.
</span>The best example<span> of a </span>substitution reaction<span> is halogenation.
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Organic compounds react at a slower rate and manufacture far more complicated<span> set of </span>product<span> than inorganic compounds.</span>
Answer would be A)the atom
