Phosphoric acid (H3PO4) can give up three protons, each with different pKa values consisting of 2.12, 7.21, and 12.67. If plotting pH as a function of sodium hydroxide solution added, which titration curve will be formed?

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

For each of the following mixtures decide if filtering would be suitable to separate the substances. explain your answers. oil in water sugar in water sand in water chalk in water tea leaves in a cup of tea

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.