4) (5 pts) Give the formal charge of Sulfur in each of the following

S

Na2S

SO

SO-2

The first reaction in the Ostwald process for the production of nitric acid involves the combustion of ammonia 4NH3 (g) + 5O2 (g) = 4NO (g) + 6H2O (g) a) Estimate ΔH^o (in kJ) for this reaction using average bond energies.

Atom A emits mainly X rays when it is excited. Atom B emits mainly gamma rays. Which emission corresponds to a transition between energy levels that are closer in energy? Explain your answer. (Hint: Refer to the electromagnetic spectrum)

3. How many moles of each type of atom are in 1.0 mol of C6H12O6? 4. How many molecules are in 16.8 mol of H2O? 5. How many moles are present in 100.0 g of Al?

A client is to receive 150 mL of intravenous solution over the next hour using a microdrip delivery system. How much fluid would the client receive in 1 minute?

According to the Universal Law of Gravitation, every object attracts every other object in the universe. Why can't you feel the force of attraction between you and Mars? A. There is no force between you and mars. B. Your mass is too low. C.

Which statement correctly describes the interaction between magnetic poles? North and south poles attract each other. North and south poles repel each other. Two north poles will attract each other. Two south poles will attract each other.

You are measuring the mass of various shapes objecys and identifying their shaped ypu then record the qualitative and quanatitave data in a table is qualitataive wnd which is quatitaive

A positively charged wire is attracted to a negatively charged piece of metal. What force causes this?

Two identical atoms from Area B bond together. What type of bond will they most likely form A. Electrostatic B. Metallic C. Ionic D. Covalent

Which would be the best way to represent the concentration of a 1.75 M K2CrO4 solution? 1.75% K2CrO4 [K2CrO4] (K2CrO4) K2CrO4, [M] = 1.75