How do I balance Hg (NO3) 2

What happens to the nucleus of an atom during nuclear fission? A. it absorbs another nucleus B. it splits into two pieces of similar size C. it spilts into one large and one small piece D. it absorbs and election, proton, or alpha particle

What is the energy of a photon of green light with a frequency of 5.50 x 101^4 Hz?

Which of the following statements, if true, would support the claim that the NO3 - ion, represented above, has three resonance structures? The NO3 - ion is not a polar species. A The oxygen-to-nitrogen-to-oxygen bond angles are 90°.

If the half-life of a radioactive material is 8 years, how many years will it take for one-half of the original amount of material to decay?

Oxygen gas, generated by the reaction 2KClO3 (s) - >2KCl (s) + 3O2 (g) is collected over water at 27°C in a 1.55 L vessel at a total pressure of 1.00 ATM. (the vapor pressure of H2O at 27°C is 26.0 torr.

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.

Is romano cheese an element, compound, homogeneous mixture, or heterogeneous mixture?

Which of the following is an appropriate food storage method

Why should your disposal of excess magnesium take place in a fume hood? (choose all that apply) Group of answer choices The quench released hydrogen gas, which is flammable and explosive The quench is highly exothermic and might cause the solvent to

For the chemical equation SO2 (g) + NO2 (g) SO3 (g) + NO (g) SO2 (g) the equilibrium constant at a certain temperature is 3.00. At this temperature, calculate the number of moles of NO2 (g) that must be added to 2.30 mol SO2 (g) in order to form 1.