Question

1. arrange the following metals in order of increasing electropositivity: ca,zn,Au,pb
2. Define the term pH of a solution
3. Solution A,B,C,D and E have Put values of 2,5,7,8 and 12 respectively which is the:
a. Most acidic
b. Most basic
c. Neutral

Answer 1

Answer:

2. pH is the negative logarithm of the molar concentration of Hydrogen ion.

3. A=2 will be more acidic

E=12 will be more basic

C=7 will be neutral

1. I don't know

SORRY!

Answer 2

Answer:

1. Au, Pb, Zn, Ca

2. pH of a solution is the measurement of hydrogen ion concentration or the measure of the acidity of a solution

3. A →a) Most acidic

   B →a) acidic

   C →c) Neutral

   D →b) basic

   E →b) Most basic

Step by Step Explanation:

1. The arrangement of metals in order of increasing electropositivity is

  Au, Pb, Zn, Ca

2. pH of a solution is the measurement of hydrogen ion concentration or the measure of the acidity of a solution

• If the solution has a pH of less than 7, then it is acidic
• If the solution has a pH greater than the 7, then it is basic
• If the solution has a pH of 7, then it is neutral

3. A →a) Most acidic (2<7)

  B →a) acidic (5<7)

   C →c) Neutral (7=7)

   D →b) basic (8>7)

   E →b) Most basic (12>7)