The Question and Answer section for The Hunger Games is a great resource to ask questions, find answers, and discuss the novel.
Katniss' mother became catatonic after her husband's death..... unable to take care of herself or her children. She was completely devastated.
Katniss is angry at the girl who starts the fire because she almost kills them both by attracting the Career Tributes. Luckily, they weren't together, because the tributes soon came along and killed the girl, as Katniss expected.
According to Cato and the other careers, there is nothing salvageable from the explosion.
The other tributes are poking around in the mess, looking for anything to salvage, but there’s nothing. The boy from District 3 has done his job too well....