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Both sodium and potassium are present in...

Both sodium and potassium are present in equal abundance in the earth's crust, but sodium is about 30 times as abundant as
potassium in oceans. Give reasons.

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To answer the question regarding the differing abundances of sodium and potassium in the oceans despite their similar abundance in the Earth's crust, we can break down the reasoning into several steps: ### Step-by-Step Solution: 1. **Understanding Abundance in Earth's Crust**: - Sodium (Na) and potassium (K) are both alkali metals found in the Earth's crust in similar abundances. Sodium is present at approximately 2.83%, while potassium is around 2.59%. 2. **Examining Ocean Composition**: ...
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Magnesium is a valuable, light weight metal used as a structural material as well as in alloys, batteries, and in chemical synthesis. Although magnesium is plentiful in Earth's crust, it is mainly found in the sea water (after sodium). There is about 1.3 g of magnesium in every kilogram of sea water. The process for obtaining magnesium from sea water employs all three types of reactions, i.e., precipitation, acid-base, and redox-reactions. Precipitation reaction involves formation of :

Magnesium is a valuable, light weight metal used as a structural material as well as in alloys, batteries, and in chemical synthesis. Although magnesium is plentiful in Earth's crust, it is mainly found in the sea water (after sodium). There is about 1.3 g of magnesium in every kilogram of sea water. The process for obtaining magnesium from sea water employs all three types of reactions, i.e., precipitation, acid-base, and redox-reactions. Acid-base reaction involves reaction between :

Magnesium is a valuable, light weight metal used as a structural material as well as in alloys, batteries, and in chemical synthesis. Although magnesium is plentiful in Earth's crust, it is mainly found in the sea water (after sodium). There is about 1.3 g of magnesium in every kilogram of sea water. The process for obtaining magnesium from sea water employs all three types of reactions, i.e., precipitation, acid-base, and redox-reactions. Redox reaction takes place (in the extraction of Mg) :