Panuto: Gamit ang balita sa itaas isulat sa dahilan ang halimbawa na iyong sa balita. Magbigay ng magiging bunga ng implasyon at ang epekto ng implasyon Dahilan Bunga ng Implasyon Epekto ng implasyon Demand-Pull Inflation Cost-Push Inflation Import-Induced Inflation Profit-Push Inflation Currency Inflation Petrodollars Inflation

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.

The correct answer would be a.