150 mL of 0.50 M NaOH is added to a 200 mL solution of 2.0 M HF.
a. How many moles of OH are in solution?
b. How many mole of F remain in the final solution?

Your roll: experienced electron speech is adressed to: a new "freshman class" of electrons job: write a speech task: you are to pretend that you are giving a speech to a new group of electrons. be sure to mention their placement in an atom, their charge, and their role in chemical bonding (ionic and covalent) be specific!

Which of the following units is not an official si unit

What is the wavelength of a 3*10^12 hz infrared wave a 3*10^20m b 1* 10^4m c 3*10^-3m d 1*10^-4 m