Which of the following is an acid base reaction? A) C(s) + ...

[karlynnae]

Which of the following is an acid base reaction?
 
  A) C(s) + O2(g)  CO2(g)
  B) 2 HClO4(aq) + Ca(OH)2(aq)  2 H2O(l) + Ca(ClO4)2(aq)
  C) Fe(s) + 2 AgNO3(aq)  2 Ag(s) + Fe(NO3)2(aq)
  D) MgSO4(aq) + Ba(NO3)2(aq)  Mg(NO3)2(aq) + BaSO4(s)
  E) None of the above are acid base reactions.

Question 2

How many g of CaCl2 are needed to prepare 500. mL of a 0.375 M solution?
 
  A) 0.188 g
  B) 1.69 g
  C) 3.00 g
  D) 20.8 g
  E) 37.0 g

[parshano]

Answer to Question 1

B

Answer to Question 2

D

[karlynnae]

Excellent

[abro1885]

TYSM