Element z reacts with bromine to form an ionic compound zbr2. A) state with reasons i) the physical properties of zbr2 at room temperature , deduce the charge on the Z in the compound

Explanation:

Ionic compound generally have very similar physical properties. The following are the likely physical properties of the compound because it is an ionic compound:

They are usually hard solids with high melting points or liquids with high boiling points. They are soluble in water because they are polar compounds. Their aqueous or molten forms conducts electricity due to the free mobile ions they produce. They are involved in fast reactions.

B. The charge on the Z in the compound is +2;

  In ZBr₂:

       ZBr₂  →   Z²⁺   +   2Br⁻  

The charge on Z is 2+

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.