Date _________________
NOTES-047B – IN CLASS PRACTICE
xNOTES-047B:x Predicting Products 2
xxx
CHEM 110 (BEAMER)
xxx
In Class Practice: Decomposition Reaction: Decomposition of a Metal Hydrogen Carbonate
Note: You will need Notes-047A and Appendix 8.
Class Practice Questions
Practice Max Time (8 min). Exam Max Time (4 min).
1)
What is another name for “hydrogen carbonate”?
2)
Name two of your own examples of a “metal hydrogen carbonate.” Do not use any transition metals in your
examples.
2A)
2B)
2C)
3)
lead(II) hydrogen carbonate
Write the chemical formulas of the examples in Questions 2A – 2C.
3A)
3B)
3C)
4)
Using the same metals as in Question 2a – 2c, name three metal oxides.
4A)
4B)
4C)
5)
Write the chemical formulas of the examples in Questions 4A – 4C.
5A)
5B)
5C)
Page 1 of 3
Date _________________
6)
7)
NOTES-047B – IN CLASS PRACTICE
CHEM 110 (BEAMER)
You are given the name of a metal hydrogen carbonate. Write the name of the metal carbonate that will be
formed from its decomposition.
6A)
lithium hydrogen carbonate
6B)
calcium hydrogen carbonate
6C)
copper(II) hydrogen carbonate
Write the chemical formulas from your answers to Question 6A – 6C
7A)
7B)
7C)
8)
Predict the product(s)/write the (unbalanced) chemical equation for the decomposition of iron(II) hydrogen
carbonate. (Work through with instructor)
9)
Predict the product(s)/write the (unbalanced) chemical equation for the decomposition of aluminum hydrogen
carbonate. (Work through with instructor)
10)
Predict the product(s)/write the (unbalanced) chemical equation for the decomposition of Be(HCO3)2. (Work
through with instructor)
11)
Predict the product(s)/write the (unbalanced) chemical equation for the decomposition of Zn(HCO3)2. (Work
through with instructor)
Page 2 of 3
Date _________________
12)
NOTES-047B – IN CLASS PRACTICE
CHEM 110 (BEAMER)
When an unknown metal hydrogen carbonate decomposes, calcium hydrogen carbonate powder, carbon dioxide
gas, and water vapor are formed. What is the name of the initial metal hydrogen carbonate?
___________________________________________________________
∆
Equation 13:
KHCO3(s)
Question 13:
Rewrite Equation 13 using carbonic acid.
Equation 14:
Zn(HCO3 )2(s)
Question 14:
Rewrite Equation 14 using carbonic acid.
Equation 15:
Fe(HCO3 )3(s)
Question 15:
“Complete” Equation 15.
Equation 16:
Ba(HCO3 )2(s)
Question 16:
“Complete” Equation 16.
→
K2 CO3(s) + H2 O(g) + CO2(g)
∆
→
∆
→
∆
→
ZnCO3(s) + H2 O(g) + CO2(g)
Fe2 (CO3 )3(s) + H2 CO3(aq)
BaCO3(s) + H2 CO3(aq)
Page 3 of 3