Sodium has an atomic number 11, it means there are 11 electrons in sodium atom and has a net charge zero what when it combines with chlorine it loses one electron and get charge of +1. when and atom loses an electron it gets positive charge and when atom gains electron it gets negative charge. chlorine makes an anion and sodium makes cation and they are oppositely charged so they react with each other.
Answer:
<u><em>Both acids </em></u>and<u><em> bases</em></u> can measured using the pH or pOH scale. Both scales provide a measure of either the H+ concentration or the OH- concentration. Notice that each scale shows were acids and bases both are located. When acids are measured, the pH is less than 7, but the pOH is greater than 7.
Explanation:
D)plastic copper
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<span>An azeotrope is a mixture of two or more liquids whose proportions remain the same when vaporized. Because of this, fractional distillation is unable to purify ethanol.</span>