When stars are in the main sequence, what two forces act against each other to maintain a star's stable size?

A chemist carefully measures the amount of heat needed to raise the temperature of

What is the electron configuration for the Co3 + ion? Use the buttons at the top of the tool to add orbitals in order of increasing energy, starting at the bottom with the lowest energy orbitals. Click within an orbital to add electrons.

How is a solute different from a solvent in a solution? a. The solute is present in a smaller amount. b. The solute is present in a greater amount. c. The solute is a solid and the solvent is a liquid. d.

A balloon has a volume of 1.75L at a temperature of 25 °C. what will be the volume of the balloon if you take it out into the winter cold air at - 15°C?

Cutting a piece of paper in half proves that solids have no definite shape. True or False?

Chloroform was used as an anesthetic for childbirth and surgery during the nineteenth century. Write the molecular formula of chloroform.

Why are alloys generally used to make everyday objects

What types of matter could be separated by physical methods?

What information does a net ionic equation give that a complete ionic equation does not show

What is the molality of a solution containing 4.0 moles of solute in 3.2 kg of solvent? Round to the nearest tenth. Don't forget the units.