Suppose a piece of silver jewelry contains 6.15×1022 atoms of silver (ag). how many dozens of silver atoms are in the piece of jewelry?

The answer to your question is: 5.125 x 10 ²¹ dozens of silver atoms

Explanation:

Data

Silver jewelry = 6.15 x 10 ²² atoms

dozens of silver atoms = ?

Process

Divide silver jewelry  by 12

                                      =

                                      = 5.125 x 10 ²¹ dozens of silver atoms

b. acid is the correct answer @jayxboof all social media

acid : acids are those which accepts an electron-pairs.

base : bases are those which donates ab electron-pairs.

alkali : it is a base that dissolves in water. it is basically a base and the ph greater than 7.

hydroxide ion : it is a poly-atomic ion which is negatively charged.

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.