Fill in the blanks with the options given:
  
Answer variants:
Straight
Branched
Sodium ethanoate
Ethyl alcohol
Branched
 
1. Ethanoic acid reacts with sodium carbonate forms __________, water along with the liberation of brisk effervescence (\(CO_2\)).
 
2. Biodegradable detergents are made of __________ chain hydrocarbons.