A potassium ion can combine with several monatomic and polyatomic ions to form compounds. An example of a potassium compound containing both ionic and covalent bonds_ is , and an example containing only ionic bonds is_ .
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True, the standard unit for volume is liters which can be represented by either a lower case "l" or a capital "l"

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.

The answer you are looking for is option d