Determine the elements with these electron configurations

1s 2s 2p5 =

1s 2s 2p 3s 3p5 =

1s 2s 2p 3s 3p 482 3d? =

The concentration of hydroxide ions is greater than the concentration of hydronium ions for acidic solution. True or false.

A reaction has a standard free-energy change of - 10.90 kj mol-1 (-2.605 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °c.

Which of the following is not an example of an electrolytic solution? a sports drink sweat ocean water pure water

How many people have died as a results of the spread of virus?

How many grams of co2 are in 13 mol of the compound?

How many atomic mass units are equal to 1.672*10-24 g of protons?

What is the name of the compound Sr3N2?

The water softener discussed here relies on precipitation softening also known as ion exchange. based o hte reactants used, what ions would remain in the softened water thaat would be consumed buy the homeowners

What would be the best technique to separate a soluble solid from a solution, like separating salt from a mixture of salt water?

What are metalloids used for