Which of the following pairs of substances will NOT make aqueous buffer solutions (consider the products of acid-base reactions to get a correct answer)? KF, HF KOH, HF KOH, HBr NaClO, HNO3 HC2H3O2, NaOH  NaOH, HNO3 KCl, HCl

Jalen is concerned that the content of his presentation will not be credible. To counteract this, Jalen should:

Calculate ΔSo298 for the following change 2HCl(g) + Pb(s)

Use the standard reduction potentials given below: Cu2+ + 2e- → Cu;  Eo red = 0.337 VMg2+ + 2e- → Mg;  Eo red = -2.37 VCalculate value of the standard cell potential for an electrochemical cell with the following reaction. Cu(s) + Mg2+(aq) → Cu2+ (aq) + Mg(s)

Balance the following redox reaction which happens in an acidic solution. What’s the coefficient of Fe3+? MnO4- + Fe2+ → Mn2+ + Fe3+

If the solubility of Ca(OH)2 in pure water is 1.9 g/L at a certain temperature, calculate its Ksp at that temperature.

Name the landmark indicated.

What are the USPLS coordinates of of the Football Stadium here in Jacksonville? Quarter the sections down to 40 acres.

Is this map large scale or small scale? Why?

What is the difference between a map projection that preserves shape vs. a map projection that preserves area?