Which of the following is a common physical property of ionic compounds? a. high melting point b. insoluble in water c. conduct electricity when solid d. magnetic

A. High melting point

Explanation:

Ionic compounds are usually composed of metal cations (positively charged ions) and nonmetal anions (negatively charged ions). Ionic compounds contain strong ionic bonds which occur as a result of the attraction between the oppositely charged ions. At room temperature, ionic compounds also tend to be crystalline solids. In this arrangement, not only are the cations and anions attracted to each other within a particular ionic molecule, the cations in one ionic molecule are also attracted to the anions in another ionic molecule. This creates very stable structures with high melting points.

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emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50