The element with the ground state electron configuration of 1s2 ...

[casperchen82]

The element with the ground state electron configuration of 1s2 2s2 2p6 3s2 is
 
  A) Mg.
  B) Ca.
  C) Mn.
  D) Ne.

Question 2

The stomach is very sensitive to changes in pH (particularly highly acidic conditions). Suggest why aspirin, acetylsalicylic acid, causes stomach upset. What is the purpose of so-called buffered aspirin tablets?
 
  What will be an ideal response?

[shaquita]

Answer to Question 1

A

Answer to Question 2

Taking aspirin automatically lowers pH in the stomach, as would ingesting any acidic substance. The gimmick behind buffered aspirin is to package in a tablet both the aspirin (the acid) and a solid mixture of compounds which form a buffer when dissolved in the stomach. The buffer action tends to resist the change in pH brought about by ingesting the aspirin, and thus minimize any stomach upset.

[casperchen82]

Thanks for the timely response, appreciate it

[marict]

Wow, this really help