HELP ME FAST PLEASE
Which is the balanced chemical equation representing the reaction between vinegar and baking soda?
C2H4O2 + NaHCO3 NaC2H3O2 + H2O + CO2
Select one:
a. 2C2H4O2 + NaHCO3 NaC2H3O2 + 2H2O + 2CO2
b. C2H4O2 + 2NaHCO3 2NaC2H3O2 + H2O + CO2
c. C2H4O2 + NaHCO3 NaC2H3O2 + H2O + CO2
d. 2C2H4O2 + NaHCO3 NaC2H3O2 + H2O + 2CO2
Which of the following chemical equations is balanced?
Select one:
a. 4H2 + 2O2 2H2O
b. H2 + Cl2 4HCl
c. 4Fe + 3O2 2Fe2O3
d. 2Fe + HCl FeCl2 + H2
Which of the following chemical equations is unbalanced?
Select one:
a. 3Mg + Mn2O3 3MgO + Mn
b. AgNO3 + LiOH AgOH + LiNO3
c. 2NaOH + H2SO4 Na2SO4 + 2H2O
d. CH4 + 2O2 CO2 + 2H2O
Which of the following chemical equations is unbalanced?
Select one:
a. 2H2 + O2 2H2O
b. 4Na + O2 2Na2O
c. N2 + 2H2 2NH3
d. P4 + 5O2 P4O10
Which of the following chemical equations is unbalanced?
Select one:
a. 2Al2O3 4Al + 3O2
b. 2C2H6 + 7O2 4CO2 + 6H2O
c. 2H2O2 2H2O + O2
d. 2C + H2 CH4
Which of the following chemical equations is balanced?
Select one:
a. P4 + O2 P2O3
b. CF4 + Br2 CBr4 + F2
c. Na3PO4 + KOH NaOH + K3PO4
d. MgF2 + Li2CO3 MgCO3 + 2LiF
Which coefficient before cesium (Cs) balances this chemical equation?
GaF3 + __Cs 3CsF + Ga
Select one:
a. 3
b. 2
c. 1
d. 4