Chem Help with types of reactions..?

Question

Can someone please help me, i have my answers and i just want to double chack, thanks !!

2. What are the correct formulas of the product for this reaction:
BaCl2 + K2(CO3)

a. Ba(CO3) + K2CL
b.Ba2(CO3) + KCL
c.Ba(CO3) + KCl
d.Ba2(CO3)3 + KCL

3. What is the classification for this unbalanced reaction?
Fe + HCl -> FeCl3 + H2
a.decomposition
b.combustion
c.double replacement
d.combination
e.single replacement

6. What equation is balanced for the following reaction?
HF + SiO -> SiF + H2O

a. 4HF + SiO -> SiF4 +H2O
b. 8HF + 2 SiO2 -> 2SiF + 4H2O
c. 2HF + SiO2 -> SiF4 +H2O
d. 4HF +SiO2 -> SiF4 + 2H2O

7. Which equation is balanced for the following reaction?
Al + H2O -> Al2O3 +H2
a. 2AL + 3H2O -> Al2O3 + 3H2
b. 2Al +3H2O -> Al2O3 +H2
c. Al + H2O -> Al2O3 +H2
d. 2Al + H2O -> Al2O3 +H2

thanks!

this is what i gor..is it right?
2- C
3-i admitt, i have no idea!?
6- d
7-a

Answer 1

2.) c. Ba(CO3) + KCl
3.) e. single replacement
6.) d. 4HF + SiO2 --> SiF4 + 2H2O
7.) a. 2Al + 3H2O --> Al2O3 + 3H2

You had the three right. :)
I'm pretty sure number 3 is single replacement.

Answer 2

2 is 'c'

3 is 'e'

6 is 'd'

7 is 'a'

Get an "A"