We create an electron with wavefunction ψ = [ψ1s (r) + 3ψ3s (r) ] / √ 10. Find the expected value hEi of the energy in that state. Use the energies of the hydrogen atom to extract your answer in electron volts.

Consider the reversible reaction in aqueous medium shown below. At equilibrium, the concentrations of A, B, C, and D are 0.0053 M, 0.0085 M, 0.0040 M, and 0.0035 M, respectively. What is the equilibrium constant for the reaction? A+3B⇌3C+D

Writing the hypothesis's the "if" and "then" format makes it Easier to predict More accurate to analyze Testable Hypothetical

Describe how to create a food chain diagram to determine the trophic level of each organism in the chain

1. How many milliliters of a 0.184 M NaNO3 solution contain 0.113 moles of NaNO3? ans:614 mL

You will have a 500mL solution of salt water. From this you will take 10.0mL and place it on a balance. You find that the 10.0mL solution has a mass of 10.7 g. What is the density of the 500mL of salt water solution in g/mL?

What was concluded about the structure of the atom as the result of the gold foil experiment? (1) A positively charged nucleus is surrounded by positively charged particles. (2) A positively charged nucleus is surrounded by mostly empty space.

Andre is predicting the products of chemical reactions. In one reaction, a hydrocarbon is the only reactant. What is the best prediction and explanation of this reaction? Two new compounds form as the hydrocarbon undergoes a synthesis reaction.

What evidence is there that electrons move around in definite pathways around the nucleus? What evidence is there that electrons m

Are greenhouse gases good for us?

How to convert metric units?