Why does a reaction involving a catalyst finally stop

HQ5.49 Use standard enthalpies of formation to calculate the standard enthalpy of reaction for the following reaction: 2 H 2 S (g) + 3 O 2 (g) → 2 H 2 O (l) + 2 SO 2 (g) ΔH ∘ rxn

Violet light has a wavelength of 4.10 x 10^-12 m. What is the frequency?

The correctly balanced equation for H2O2 → H2O + O2 is A) H2O2 → 2H2O + O2 B) H2O2 → H2O + 2O2 C) 2H2O2 → 4H2O + O2 D) 2H2O2 → 2H2O + O2

A. Write an equation for determining the number of moles of NaOH that are added to the flask based on [NaOH] and volume of NaOH titrant (mL NaOH): B.

Where are most of the gas molecules in the atmosphere found?

How much is 35° C in F?

Which describes a precipitate in a chemical reaction? a a gaseous product formed from aqueous reactants b a solid reactant that forms aqueous product c a gaseous reactant that forms aqueous products d a solid product formed from aqueous reactants

Prepare a solution that is 0.1 M acetic acid and 0.1 M sodium acetate by measuring out 5.0 mL of the 1.0 M acetic acid solution and 5.0 mL of the 1.0 M sodium acetate solution in a 100 mL graduated cylinder, diluting the 10.

Which element has an ion that is smaller than an ion of calcium?

Which factor is responsible for the weak attraction between diatomic molecules of the halogens (group 7A) ? A) Hydrogen bonding B) Ionic bonding C) Dipole interactions D) London dispersion forces