Brian has a meeting to attend at 10:30 am. However, he got stuck in traffic. Everybody at his office was ready for the meeting and had to wait for him to arrive. What should Brian do in this situation?
OA. He should start walking toward his workplace.
OB. He should wait for someone to call him and ask why he is late,
Ос.
He should inform his manager that he will be late.
OD. He should keep quiet about being late.

answer: when the substance contain the two parts (polar and non-polar) like soap.

explanation:

soap is produced from the basic hydrolysis of ester "saponification", it is considered as a salt of hydrocarbons. the soap molecule contains the two parts: a polar group   (-coo-na+) and a non-polar group (r-hydrocarbon part). the polar group is called the head and the tail is the non-polar group. the polar group is hydrophilic in nature (water loving) and the non-polar group is hydrophobic in nature (water repelling).the polar/non-polar nature of a substance is useful that it can dissolve the non-polar substances by the polar part and also can dissolve the polar substances by the non-polar part. it commonly used in detergents and soaps.