Draw the lewis structure for the selenium dioxide molecule. be sure to include all resonance structures that satisfy the octet rule.

Lewis structure is shown below.

Explanation:

For selenium dioxide molecule,

Valence electrons of selenium = 6

Valence electrons of oxygen = 6  

The total number of the valence electrons  = 6 + 2(6) = 18

The Lewis structure is drawn in such a way that the octet of each atom in the molecule is complete. So,  the Lewis structure of the molecule is shown in the image below.

idk

explanation:

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e