How many non-bonding electrons does phosphorus have?

1. What should technicians know about any equipment they are using in a compound- ing process?

Which of these correctly defines the pH of a solution? A. the negative log of the hydronium ion concentration B. the log of the hydronium ion concentration C. the negative log of the hydroxide ion concentration C.

Use the following key to classify each of the elements below in its elemental form: A. Discrete atoms ... C. Metallic lattice B. Molecules ... D. Extended, three-dimensional network 1. Krypton 2. Argon ... 3. Phosphorus 4. Nitrogen ...

When na2cro4 (aq) and agno3 (aq) are mixed, a red colored precipitate forms which is?

What causes the arrows to move in this direction? Earth rotating air moving to the poles Earth's equator wind moving over short distances

Nonmetal oxides can react with water to form acids. For example, carbon dioxide reacts with water to form carbonic acid: CO2 H2O H2CO3. (1) Write an equation to show how diiodine pentaoxide reacts with water to form an acid. Do not include states.

If atmospheric pressure suddenly changes from 1.00 atm to 0.892 atm at 298 k, how much oxygen will be released from 4.40 l of water in an unsealed container?

Determine the molecular formula for the unknown if the molecular mass is 60.0 amu and the empirical formula is ch2o.

Draw the organic product of the following nucleophilic reaction

How does the energy of the activated complex compare with the energies of reactants and products? select one: a. it is lower than the energy of both reactants and products. b.