Blog

A solution at pH 1 contains __________ than the same amount of a solution at pH 4.

Which of the following statements is NOT true about electron configurations?

The number of ______ is the same for all atoms of the same element.

Based on your knowledge of the polarity of water molecules, the solute molecule depicted here is most likely ________.   

In what way are elements in the same column of the periodic table the same? Select all that apply.     

Which substances are on the basic side of the pH scale? Select all that apply.

Match the following pairs of atoms with the statement that correctly describes both atoms in the pair:

Amino acids are acids because they always possess the functional group known as _______________.

An atom that is made up of 8 protons, 8 neutrons and 8 electrons would have a mass of _____ daltons.

The reactivity of an organic molecule is primarily dependent upon _____ of the molecule.