Why is the ionic radius of potassium smaller than the atomic radius? Explain why an increase in electrons results in an increase in boiling point. Explain why a magnesium atom is bigger than a sodium atom. Explain why covalently bonded materials are generally less dense than ionically or met...
Why is NaCl described as a strong electrolyte? Why doesn't water undergo electrolysis? Why does Na_2SO_4 undergo electrolysis? Why does not water undergo electrolysis? Why does Na_2SO_4 undergo electrolysis? Why is potassium the most reactive metal? Explain why hydrogen and chlorine molecules...
Explain (i) Why alkali metals are normally kept in kerosene oil. (ii) Why alkali metal impact colour to the flame? (iii) Explain, why lithium chloride h
The chemistry of lithium is very much similar to that of magnesium, even though they are placed in different groups. Explain. Which of the following compounds have the same physical properties? What makes a carbon atom different from a nitrogen atom? How are they alike?
Which do you expect to be more reactive, lithium or potassium? Explain. Explain why a salt compound gives off light or a colored flame when burned. Explain why bubbling a solution with an inert gas (e.g. argon or nitrogen) causes deoxygenation of the so...
Fireworks are produced by gunpowder and chemicals in a rocket shell that is fired into the air and exploded. Based on these elements such as barium, calcium, lithium, potassium, sodium, and strontium, A hazard that is particularly associate...
(>99%, Aldrich), lithium hydroxide (>98%, Sigma-Aldrich), sodium fluoride (≥99.9%, Sigma-Aldrich), potassium perchlorate (>99%, Sigma-Aldrich), sodium dodecyl sulphate (≥98.5%, Sigma-Aldrich), sodium nitrite (>97%, Aldrich), sodium ethoxide (95%, Sigma-Aldrich), potassium hydrogen ...
5.3. Potassium NFs Potassium (K) is the third most important macronutrient after N and P, and it has a vital regulatory role in all the physiochemical functions of plants to sustain normal growth and development. Among others processes, K is involved in plant stomatal opening, photosynthesis, ...