posted by .

On a worksheet we got, we have to balance out chemical reaction equations then define what kind of reaction it is (synthesis, decomposition, single/double-replacement). Would someone be willing to check my answers, please? Thanks!!

1. c) BaO + H2O ==> ________ (synthesis)

==> For this, I put the product to be BaH2O2.

3. c) H2SO4 + KOH ==> ________ (double-replacement)

==> For this, I put the product to be H2OH + KOSO4, but this doesn't sound right at all. :-/

4. a) CH4 + O2 ==> CO2 + H2O

==> This reaction looks like it could be a double-replacement reaction, but I'm not entirely sure. Anyone have a guess?

• Honors Chemistry (check answers) -

1. c) BaO + H2O ==> ________ (synthesis)

==> For this, I put the product to be BaH2O2.
BaH2O2 is correct but I would write is as Ba(OH)2 to make it more recognizable. Synthesis is correct.

3. c) H2SO4 + KOH ==> ________ (double-replacement)

==> For this, I put the product to be H2OH + KOSO4, but this doesn't sound right at all. :-/
You're right. It doesn't sound right nor does it look right. Double displacement is ok. In a double displacement, just switch + and - ions. So K goes with SO4 and H goes with OH. Now you can worry about what the formula for these compounds is. K and SO4 must be K2SO4 while H and OH must be HOH or H2O. I think you are making a mistake in trying to make the formula match the number of atoms and that isn't the way to do it. First, you switch ions. Second you determine the formula (using valences or the periodic table and not the number of atoms). Third, and final step is to balance.
H2SO4 + KOH ==> K2SO4 + H2O
Now balance it.
H2SO4 + 2KOH ==> K2SO4 + 2H2O
(Some would call this an acid/base reaction.)

4. a) CH4 + O2 ==> CO2 + H2O

==> This reaction looks like it could be a double-replacement reaction, but I'm not entirely sure. Anyone have a guess?
You don't have it listed in the preamble of your question but this is a combustion reaction. Also, it is an oxidation-reduction (redox) reaction.

• Honors Chemistry (check answers) -

Ohhhh, I think I get what you mean. Thanks!! :)

## Similar Questions

1. ### chemistry

type of chemical reaction synthesis, decomposition, double or single K+B2O3=K2O+B
2. ### Chemistry

Recognize each of the following reactions as synthesis, decomposition, single replacement, double replacement, neutralization, or combustion. A)H3PO4 + 3NaOH -> Na3PO4 + 3H20 This reaction is known as Neutralization. B)P4 + 5O2 …
3. ### Physics

What type of reaction is CS2(g)+O2(g)= CO2(g)+S2O4(aq)+HEAT?
4. ### physics Help

I don't how to do this please help the the classify the reaction as. Synthesis decomposition single replacement double replacement. 4Al+3O2. 2Al2O3. 2NaCl. 2Na+ Cl2. Cacl2+F2. CaF2+ Cl2
5. ### science chemistry

Given 4K + O2 → 2K2O, what is the reaction type?
6. ### Chemistry

I am learning the different types of chemical reactions synthesis, decomposition, single displacement, and double displacement I am also learning skeletal equations word equations and balancing the equations I know how to balance equations …
7. ### Science 10

Need examples of food for Chemistry Reactions 1. Synthesis 2. Decomposition 3.Single Replacement 3. Double Replacement So for synthesis ( A + B --> AB ) I did, Macaroni + Cheese --> Mac n Cheese For Decomposition ( AB --> …
8. ### Chemistry

0.05 L of chlorine gas is bubbled through 0.5 L of 2 M sodium Bromide solution. -What type of reaction is this ?
9. ### Chemistry

Which of the following general equations describes all decomposition reactions?
10. ### Chemistry

Classify the reaction type (formation, simple composition, decomposition, combustion, single replacement, double replacement) and predict the balance equation 1. AL(s) + 02(g) ------> 2. Ag2O(s)------> 3. Br2(1) + KI(aq) ------->

More Similar Questions