7. Answer the question below. Use the rubric in the materials for help if needed. Looking at the electron dot structures for carbon dioxide below. Choose the one that is correct, and explain why it is
correct based on the six rules for drawing covalent structures.
:c=0-0
:0=C—0:
:0=C=0
A
B
C
Ilse eyamnles to support your answer.

why do the isotopes of a particular element behave differently in nuclear reactions but the same in chemical reactions? chemical reactions involve changes to electrons in an atom; isotopes do not differ in electrons, and so they react the same way during chemical changes.

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.