Blood flow that moves at a variable velocity due to cardiac contraction is called:

Of the following compounds, an aqueous solution of which substances will form basic solutions.                    NH4ClO4          K2CO3             Cr(NO3)3         NaCl

Which type of water reservoir below would contain laminar flow? 

The base-dissociation constant, Kb , for ethylamine, C2H5NH2 , is 6.6 x 10-4. The acid-dissociation constant, Ka , for the ethylamonium ion, C2H5NH3+, is                   .   Hint: All Ka/Kb values are at 25°C.

The diagrams here represent solutions at various stages in the titration of a weak base B (such as NH3) with HCl. Which image best represents the solution at the equivalence point?                                                               

In which of the following aqueous systems would you expect AgCl to have the greatest solubility? Hint: Do not forget to consider acid-base properties of salts. 

____________ predicts whether flow is laminar or turbulent.  

What is the molar solubility (in M) of manganese (II) hydroxide, Mn(OH)2, in water? Hint:  Ksp of Mn(OH)₂ is 2.1 × 10-13  

Given the standard reduction potentials below:  Half Reaction E° red (V) Ag+ (aq)  + e–  →  Ag (s)  +0.80 Fe3+ (aq)  +   e–  → Fe2+ (aq)   +0.77 Cu2+ (aq)  + 2 e–  → Cu (s)    +0.34 Sn4+ (aq) + 2 e–  → Sn2+ (aq)   +0.15 2H+ (aq) + 2 e–  →  H2 (g)  0.00 Pb2+ (aq) + 2 e –  → Pb (s)  –0.13 Sn2+ (aq)  +  2 e–  → Sn (s)  –0.14 Ni2+ (aq) + 2 e –  → Ni (s)   –0.28 Cd2+ (aq) + 2 e –  → Cd (s)   –0.40 Fe2+ (aq) + 2 e –  → Fe (s) –0.44 Cr3+ (aq) + 3 e– →  Cr (s)      –0.74 Zn2+ (aq) + 2 e –  → Zn (s)  –0.76 Al3+ (aq) + 3 e– →  Al (s) –1.66   Which of the following  substances would be the weakest reducing agent?

Consider the following voltaic cell with the overall cell reaction: Zn (s)   +   2 H+ (g)  ⟶ Zn2+ (g)   +    H2 (g) If the pressure of H2 gas is increased in the cathode cell, the value of Q will                  and the value of Ecell will                   .