Inorganic Chemistry Answers

I have a quiz on the trends of the periodic table and I became confused by the trend in reactivity. I think that in the s block, reactivity decreases from left to right and increases from top to bottom. Also, I think that in the p block, reactivity decreases from top to bottom and increases from left to right. First of all, is this correct? Also, what is the trend in the d block (transition metals)?

Why redox titration with sodium oxalate and potassium nitrate testing should not exceed 70 or 80 ° C heat and sulfuric acid to a solution of sodium oxalate?

starting with solid silver nitrate,describe how you would prepere exactly 100 cm^3 of silver nitrate solution of concentration 0,01 mol dm^3

although size of oxygen is small as compared to nitrogen but the first ionization enthalpy of nitrogen is higher than oxygen why?

Why is the second ionization energy higher than the first ionization energy in each of the atoms in the alkali family?

DEAR SIR
FOR DETERMINATION H2S IN AMINE SOLUTION WITH Potentiometry WITH AgNO3 with silver electrode why we dont need added ammonia but for H2S in condensate ammonia(NH4OH) we added ammonia? because in two solution(amine,condensate) we have Chloride?
Best regards

Dear
I want instrument GC with FPD SCD PFPD DETECTOR for determination H2S (4.5%) CH3SH(9500ppm),C2H5SH(9800 ppm) in associated gas.do have any instrument for suggestion or wich detector is best for high concentration?
BEST REGARDS

Why we should use specific PH=9 in identification of presence of Al cations in NaCl solution

How many grams of NaOH are required to nuetralize 25.0 mL of 0.50 M HCL

How many atoms of hydrogen in .266 grams of propane?