Complete the following chemical reactions. Balance the equations. a. NaCl(aq) +
ID: 856583 • Letter: C
Question
Complete the following chemical reactions. Balance the equations.
a. NaCl(aq) + AgNO3(aq)---
b.MgS(aq) + Na2CO3(aq)---
c. Ni(s) + H2SO4(aq)-----
d. CO2(g) + Ca (OH)2(aq)
e. H2O2(aq)
8.Which of the reactions in exercise 7 above is a substitution reaction? How can you tell?
9. Write out the balanced chemical equation that occurs when silver tarnishes in the presence of hydrogen sulfide(a gas produced in food decay) and Oxygen. Water isa by-product. Into which class of reactions does this reaction belong?
Explanation / Answer
Hey,
Hopefully you will have a solubility sheet at hand otherwise this may not be as easy. If you haven't learned about solubility's don't worry about the states of the compounds formed. If you have trouble I strongly suggest you seek help from a teacher.
a) NaCl(aq) + AgNO3(aq) --> NaNO3(aq) + AgCl(s)
b) MgS(aq) + Na2CO3(aq) --> MgCO3(s) + Na2S(aq)
c) Ni(s) + H2SO4(aq) --> NiSO4(aq) + H2(g)
d) CO2(g) + Ca(OH)2(s) --> CaCO3(s) + H2O(l)
e) 2H2O2(aq) --> 2H2O(l) + O2(g)
Remember to BALANCE your equations that makes working them a lot more easier.