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1. Explain why the melting point and boiling point of alkali metals are low?
2.Why is the ionisation action of alkali metals decreasing from Li to Cs?
3. What elements of the periodic table's sector s are in large quantities in biological fluids and what is their significance?
4. What happens when alkali metals react with molecular hydrogen?
5. Write two uses of NaCl
Determine value for the rate of formation of HCl during the same interval of 3 seconds If the rate of disappearance H2 = -0.13 M/s at this specific time?
Compare solutions 2 and 4. How does the common-ion effect influence the pH of solution 4. Please explain fully, and calculate the expected pH of each of these solutions.
Ignore the volume of water, and determine the final volume of the reaction mixture at 1.00 atm and 298 K if the reaction goes to completion.
Compute the equilibrium constant for the reaction between Sn2+ (aq) and Cd(s)
a saturated solution of which of the following substances in water would be the bestnbspconductor of electricity?1.
if airbus decides to hedge using money market instruments,what action does airbus need to take?what would be the guaranteed euro proceeds from the American sale in this case?
when 35.6 L of ammonia and 40.5 L of oxygen gas at STP burn, nitrogen monoxide and water is produced. After the products return to STP how many grams of nitrogen monoxide is present.
Kb has the value of 1.4 x 10-4. What pH would you expect for 0.035 M solution of ephedrine, assuming that no other substances are present?
What is the molar concentration of silver ion in a solution containing 1.3 x 10-4 M CrO42-, saturated with Ag2CrO4
The molecular mass of 12C carbon-12 is exactly 12 g/mole. The molecular mass of 16O (oxygen-16) is 15.995 g/mole. Compute the reduced mass of 12C16O molecule.
Determination of Molecular SO2 Needed for Protecting Wine, You have just finished fermenting a wine and the pH = 3.7. You need 2mg/L "molecular" SO2 to protect the wine. What level of free SO2 do you have to add to achieve the level of the molecul..
Will turn into a liquid at room temperature. Off the Periodic Table pick three solid elements that would float when placed in mercury as well as three elements that would sink when placed in mercury.
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