In an atom of barium, how many electrons have:

ℓ = 0

mℓ = 1

What is organelle that gives shape to a cell?

What is the [OH-] in a solution of pH 3.00? a. 1.0 x 10-9 M b. 1.0 x 10-6 M c. 1.0 x 10-3 M d. 1.0 x 10-11 M e. 11.00 M

Which of the following phase changes only occurs in solids possessing vapor pressures above atmospheric pressure and at ambient temperature? Condensation Melting Sublimation Deposition

Which of the following is not a part of Dalton's atomic theory? A. All elements are composed of atoms. B. Atoms of the same element are alike. C. Atoms are always in motion. D. Atoms that combine do so in simple whole-number ratios.

Guys, why is aluminum used for making aerocrafts and cooking pots?

Which of the following is a mixture? alcohol water mercury ink

A gas occupies 3.5 L at standard pressure. Find the volume of the gas when the pressure is 1.5 atm.

What is the temperature (in K) of 16.45 moles of methane gas in a 4.95 L container at 4.68 atm?

What do we call the process by which cells obtain the energy that they need?

Which of the following statements describes how the periodic table is organized? 1. The elements are organized alphabetically. 2. The elements are organized by their size. 3. The elements are organized by the date they were discovered. 4.