Answer:
jajjsjsjddjdjdjdjdjjdjeieiririitofodoslwnridooskemridisoskswkwjj jwjwiwiwiwkiwiw
Therefore 0.2 moles of sodium (Na) contains 12.046×1023atoms in it.
Answer:
<em>The</em><em> </em><em>a</em><em>n</em><em>s</em><em>w</em><em>e</em><em>r</em><em> </em><em>is</em><em> </em><em>valance</em><em> </em><em>shell</em><em>.</em>
<em>Valance</em><em> </em><em>shell</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>outermost</em><em> </em><em>shell</em><em> </em><em>of</em><em> </em><em>an</em><em> </em><em>atom</em><em> </em><em>which</em><em> </em><em>contains</em><em> </em><em>valance</em><em> </em><em>electrons</em><em> </em><em>on</em><em> </em><em>it</em><em> </em><em>of</em><em> </em><em>an</em><em> </em><em>atom</em><em> </em><em>of</em><em> </em><em>an</em><em> </em><em>elements</em><em>. </em>
<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
The element oxidized is the element in which the charge becomes more positive after the reaction, hence the reducing agent. The element that is reduced is the element or compound in which the charge becomes more negative after the reaction. Sn becomes +4 from +2. Hence Sn is the reduced element while Pb becomes +2 from +4 hence Pb is the element oxidized and PbCl4 is the reducing agent.
Answer: Electric charges are of two general types: positive and negative.
Hope this helps... Stay safe and have a great day.... :D
