Según el tipo de reacción que ocurra, clasifique cada una de las siguientes ecuaciones:
1- H2CO3 -
CO2 + H2O
2- Zn + HCI
ZnCl2 + H2
3- Mg + O2
Mgo
4. As2O3 + H2S As2S3 + H2O
5- Na + H20 NaOH + H2
6- H20 + SO: _ H2SO4
7. Ca (OH)2
Ca0 + H20
+
NH3
8. H2 + N2 -
9. CaCO3
CaO + CO2
10-Fe + CuSO4
FeSO4 + Cu​

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

What is the mass of 4 molecules of co2