Which best describes how an ionic bond forms? A. Two molecules share an electron. B. One atom pulls an electron from another atom. C. Two atoms share valence electrons. D. Two atoms both lose an electron.

Identify the applications for gel filtration chromatography. separation of components in a mixture by size estimation of molecular weights separation of components in a mixture by hydrophobicity purification of a specific protein from a mixture

Which part of making a solution always releases energy? a. separating the solvent particles from one another b. mixing the solute and solvent particles c. separating the solute particles from one another d. the overall change in forming the solution

Starting with precipitation, list the order of the steps of the water cycle.

If I have 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature? (2005 K)

What is the nuclear charge of an alpha particle?

If 1000. mL of linseed oil has a mass of 929 g, calculate the density of linseed oil.

Why is pure water not a conductor of electricity? A. Pure water has no free ions. B. Pure water has many dissolved solids. C. Pure water has few dissolved solids. D. Pure water has many free ions.

Why do the pH scale generally range from 0 to 14 in aqueous solution?

For measuring the volume of a liquid, beakers are generally: more accurate than graduated cylinders less accurate than graduated cylinders equally as accurate as graduated cylinders always used when highly accurate measurements of liquid volumes are

Identify the strongest attractive force present in the pure substances shown: london forces, dipole-dipole, hydrogen bonding, ion-dipole, or ionic attractions.