Incomplete lewis structures for the nitrous acid molecule, hno2, and the nitrite ion, no2-, are shown here. (a) complete each lewis structure by adding electron pairs as needed. (b) is the formal charge on n the same or different in these two species? (c) would either hno2 or no2- be expected to exhibit resonance?

The answer to this problem is. 67

4- c, because all matter stays the same no matter what. it is still there. 5- b, because matter is known as mass. 6-c because, flammability is a chemical property. malleability is changing the shape of an object.

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.