Author Question: A balanced net ionic equation for the reaction of Na2CO3(s) and HCl(aq). A) Na2CO3(s) + 2 HCl(aq) ... (Read 120 times)

mp14 · **on:** Aug 27, 2018

a balanced net ionic equation for the reaction of Na2CO3(s) and HCl(aq).

A) Na2CO3(s) + 2 HCl(aq) 2 NaCl(aq) + H2O(l) + CO2(g)
B) 2Na+(aq) + CO32-(aq) + 2H+(aq) + 2Cl-(aq) 2Na+(aq) + 2Cl-(aq) + H2O(l) + CO2(g)
C) Na2CO3(s) + 2 H+(aq) 2 Na+(aq) + H2O(l) + CO2(g)
D) CO32-(aq) + 2 H+(aq) H2O(l) + CO2(g)

Question 2

What is the first step in the unit analysis method of problem solving?

A) Write down the unit asked for in the answer.
B) Write down the given value related to the answer.
C) Apply a unit factor to convert a unit in the given value.
D) Round off the answer in the calculator display.
E) none of the above