Classify each reaction and give only the balanced chemical equation.1. glucose is completely burned in oxygen?

Question

2. Iron (III) oxide and carbon dioxide gas
3. Solid calcium carbonate is strongly heated
4. sulfur trioxide gas is added to excess water
5. carbon disulfide vapor is burned in excess oxygen
6. samples of boron trichloride gas and ammonia are mixed
7. sulfur dioxide gas and water

Any help with any of these chemical equations will be greatly appreciated. Thank you.

Answer 1

1) combustion
2) double replacement
3) decomposition
4) composition/synthesis
5) single replacement
6) double replacement
7) composition/synthesis

Answer 2

1.1Mg(s) + 1ZnCl2(aq) ------> 1MgCl2(aq) + 1Zn(s) (You should leave the '1's out and just write it as Mg(s) + ZnCl2(aq) ------> MgCl2(aq) + Zn(s)) 2. 2AgNO3(aq) + CaCl2(aq) ----> 2AgCl(s) + Ca(NO3)2(aq) 3. 4HNO3(aq) + 2Ba(OH)2(aq) ---> 2Ba(nO3)2(aq) + 4H2O (l) 4. 2Pb(NO3)2(aq) + 2K2CrO4(aq) ----> 2PbCrO4 + 4KNO3 Hopefully this has illustrated the idea behind balancing chemical equations. You have equal numbers of each atom on each side of the equation. To make it clearer if we go a little more indepth on number 2 you will see that in its unbalanced form - __AgNO3(aq) + ___CaCl2(aq) ----> ___AgCl(s) + ____Ca(NO3)2(aq) - there is one Ag (silver) on each side and one Ca (calcium) on each side, so these are balanced, however you have 2 Cl (Chlorine) on the left and only 1 on the right, also you have 1 NO3 (nitrate) on the left but 2 on the right, so it is unbalanced. Now if you balance it like this - 2AgNO3(aq) + CaCl2(aq) ----> 2AgCl(s) + Ca(NO3)2(aq) - you will see you have equal numbers of each atom/ion on each side. Hope that helps!