Select the correct answer. A displacement reaction takes place when calcium is placed in a solution of zinc chloride. Which substances will most likely be produced by the reaction?

Ca + ZnCl2 → ?

A.
Zn and CaCl2
B.
CaZn and Cl2
C.
CaCl and ZnCl
D.
Ca, Zn, and Cl2

Which type of orbits are found in the principal energy level n = 2 a - s b - s, f c - s, d d - s, p e - s, p, d

What are transitions between a liquid and gas called? identify which way they are transitioning

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.