Please help Which of the following reactions is an example of a double displacement reaction?
Select one:
a. NaCN + HBr --> NaBr + HCN
b. K + Cl2 --> KCl
c. C6H14 + O2 --> CO2 + H2O
d. H2O2 --> H2O + O2

2) Which of the following reactions is an example of a double displacement reaction?
Select one:
a. CH4 + O2 --> CO2 + H2O
b. Na2S + HCl --> NaCl + H2S
c. KClO3 --> KCl + O2
d. Fe + S8 --> FeS

Drive down any three characteristic of modern periodic table

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.