Answer:
2Na(s) + 2H2O(l) ---> 2NaOH(aq) + H2(g)
Explanation:
In the reaction above, solid pieces of sodium metal, Na, is dissolved in liquid water to form a solution of its alkali
(sodium hydroxide, NaOH) and gives off hydrogen gas, H.
The reaction occurs vigorously giving off hydrogen gas due to the highly reactive nature of alkali metals like sodium with water.
The most suitable answer is C becuase they would gain two elctrons to atain that stable OCTET thus becoming a anion with a charge of -2 and by virtue oxidation states of -2. There is however an exception with oxygen in two cases. But I still remain that the best answer would be C
<span>It is said
that the carbon atom is a tetra valence which means, it contains 4
covalent bonds that can be bonded with other atoms. Therefore, it needs 4
hydrogen atoms to bind into 1 carbon atom. Carbon Atom contains a total of
6 electrons that occupies the 2 shells which is the K (have 2 electrons)
and L (have 4 electrons) shells. The
outermost shell of carbon atoms that contains 4 electrons is called as
valence shell. In order to complete its octet, carbon Atom needs other
atoms to share their valence electrons.</span>
Answer:
See explaination
Explanation:
Please kindly check attachment for the step by step solution of the given problem.
molaity= moles/L
molarity= 5.0 moles/ 10 L
molarity= 0.5