(b) 25. Which equation is incorrectly balanced?
(a) 2 KNO3 4, 2 KNO2 + O2
(b) H2O2 H2O + O2
(c) 2 Na2O2 + 2 H2O - » 4 NaOH + O2
electrical energy
(d) 2 H,
2 H2 + O2
H2SO4

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What type of chemical bond is formed between two atoms of bromine 1. metallic 2. hydrogen 3. ionic 4. covalent