How many quantum numbers are used to describe the properties of electrons in atomic orbitals?

What is the mole ratio of water to H3PO4? Do not simplify the ratio.

When utilizing a transmission electron microscope, why is it necessary to stain the specimen with heavy metal salts?

Bromine has two isotopes whose masses are 78.9183 amu and 80.9163 amu. Their abundances are 50.69% and 49.31%, respectively. Calculate the average atomic mass of bromine.

Suppose that on a hot and sticky afternoon in the spring, a tornado passes over the high school. If the air pressure in the lab (volume of 180 m3) was 1.1 atm before the storm and 0.

An electron in a sodium atom gains enough energy to move from the second shell to the third the sodium atom becomes

Which of Deeandra observation is scientifically testable

A round, three dimensional object is a?

The energy needed to start a chemical reaction is called

How does the motion of particles in the sun's plasma compare to the motion of particles in a solid? particles in both the plasma and a solid move around to fill available space.

What is the molarity of a solution containing 45.78gMgCl2 dissolved in 3.00L of solution?