Hello Dr. Bob

I have been sick and missed some of my classes and my classmates want to act stupid. So if its not too much trouble could you just make sure that I am on the right track and let me know what is wrong and how I can fix them. I have a lot of assignments that I have to make up and if it is okay I would like to request you. YOu seem very knowledgeable. Thanking you in advance.

State whether each of the formulas represent an acid, a base, a salt, an acid anhydride, a basic anhydride or none.

CuF2 = salt CaSO4 = salt
Ba(OH)2 = base C2H4= none
LiOH = base C12H22O11=none
HBrO3 = acid HI = acid
RaCO3=salt P2O5=acid anhydride
KNO2 = salt HCN= acid
H2C2O4 = acid MgO=basuc anhydride

Complete and balance equations representing the reactions.

NaHCO3(s) + HCl(ag) >>> NaCl +2CO +H20

CaCO3(s) +HCl(ag) >>> CaCl +CO3H

The acid formed when carbon dioxide reacts with water is == I think it is Carbonic Acid with a formula of H2CO3?

All of the above looks ok to me except for these two.

NaHCO3(s) + HCl(ag) >>> NaCl +2CO +H20
NaHCO3 + HCl ==> NaCl + CO2 + H2O


CaCO3(s) +HCl(ag) >>> CaCl +CO3H
CaCO3 + 2HCl ==> CaCl2 + H2O + CO2

Sure, I'd be happy to help you review your chemistry questions!

Let's go through each formula and identify whether it represents an acid, base, salt, acid anhydride, basic anhydride, or none:

1. CuF2 = salt
2. CaSO4 = salt
3. Ba(OH)2 = base
4. C2H4 = none
5. LiOH = base
6. C12H22O11 = none
7. HBrO3 = acid
8. HI = acid
9. RaCO3 = salt
10. P2O5 = acid anhydride
11. KNO2 = salt
12. HCN = acid
13. H2C2O4 = acid
14. MgO = basic anhydride

Now, let's move on to balancing equations representing reactions:

1. NaHCO3(s) + HCl(aq) >>> NaCl(aq) + CO2(g) + H2O(l)
2. CaCO3(s) + 2HCl(aq) >>> CaCl2(aq) + CO2(g) + H2O(l)

The acid formed when carbon dioxide reacts with water indeed is carbonic acid, with the formula H2CO3.

You are on the right track with your answers! It seems like you understand the concepts well. If you have any specific questions or need further explanation, feel free to ask.

1. CuF2 = salt

2. CaSO4 = salt
3. Ba(OH)2 = base
4. C2H4 = none
5. LiOH = base
6. C12H22O11 = none
7. HBrO3 = acid
8. HI = acid
9. RaCO3 = salt
10. P2O5 = acid anhydride
11. KNO2 = salt
12. HCN = acid
13. H2C2O4 = acid
14. MgO = basic anhydride

To complete and balance the equations, you need to ensure that the atoms are balanced on both sides of the equation. Here are the correct balanced equations:

1. NaHCO3(s) + HCl(aq) >>> NaCl(aq) + CO2(g) + H2O(l)

2. CaCO3(s) + 2HCl(aq) >>> CaCl2(aq) + CO2(g) + H2O(l)

The acid formed when carbon dioxide reacts with water is indeed carbonic acid with the formula H2CO3.