1. Explain the arrangements of electrons in the atom and include what valence electrons are.

What does precipitate mean in chemistry?

Which of the following is an example of an electric force that occurs in atoms

What is diffusion and osmosis?

Main Expenses You plan on making payments on a new car too. You want to spend 15% of your monthly net pay on the car payment, insurance, registration, and taxes combined. What is your monthly car allowance? $149.46 $298.91 $448.37 $597.83

The pH of a solution decreases by 2.0. How does the hydronium ion concentration of the solution change?

An analytical chemist is titrating 242.5 mL of a 1.200 M solution of hydrazoic acid HN3 with a 0.3400 M solution of NaOH. The pKa of hydrazoic acid is 4.72. Calculate the pH of the acid solution after the chemist has added 1006.

A gas stream contains 18.0 mol% hexane and the remainder nitrogen. the stream flows to a condenser, where its temperature is reduced and some of the hexane is liquefied. the hexane mole fraction in the gas stream leaving the condenser is 0.0500.

What type of solution is aerated water. why is it so.

What elements form chemical bonds

Which of the following is not a pseudoscientific claim