What do the dots around a symbol in a Lewis structure represent?

a. bonding electrons

b. valence electrons

c. s orbital electrons

d. shared electrons

Assume that the partial pressure of sulfur dioxide, pso2, is equal to the partial pressure of dihydrogen sulfide, ph2s, and therefore pso2=ph2s.

What kind of bond is formed when 2 atoms share 2 pairs of electrons?

In your reading, perhaps you saw that in 1995, three chemists were awarded the Nobel Prize for their studies involving the ozone layer.

Consider the equation SO2 → S + O2. The product (s) in this equation would be: A. S B. SO2 C. S + O2 D. OSO2 ... ?

You intend to perform the double aldol condensation reaction in this week's experiment using Ketone X and Aldehyde Y. You mix 0.3 moles of Ketone X with 0.4 moles of Aldehyde X. What is your theoretical yield in moles? Round to the nearest tenth 2.

Choose the substance with the lowest surface tension. Choose the substance with the lowest surface tension. a) H2O b) (CH3) 2CO c) CH3CH2CH2CH3 d) C6H6 e) CH3OH

Which of the following is not true for atoms? They are building blocks of matter They are made of protons, neutrons, and electrons They are able to be divided by a chemical reaction. They are the smallest particle of any element.

The ductility of a material is the measure of a) The amount of elastic deformation that can be sustained before yielding b) The capacity of a material to absorb energy when it is deformed elastically c) The degree of plastic deformation that has

Consider the polymerization of styrene in toluene at 60°C initiated by di-t-butylperoxide for a solution containing 0.04 mol of initiator and 2 mol of monomer per liter. The initial rates of initiation, Ri, and propagation, RP, are found to be 1.

Which of the dollowing isotopes have 8 neutrons in the nucleus? 0-15 0-17 C13 O C14