Chicken Matzo Ball Soup

Name: Chicken Matzo Ball Soup
Ingredients: For the Soup:; 1 (4-pound) whole chicken; 3 carrots (peeled and sliced); 3 zucchini (trimmed, peeled, and chopped); 3 stalks celery (trimmed and sliced); 3 small onions (peeled, trimmed, and chopped); 2 small parsnips (peeled, trimmed, and sliced); 1 teaspoon Kosher salt (or sea salt); Freshly ground black pepper (to taste); Optional: chicken soup powder (to taste); For the Matzo Balls:; 4 large eggs (separated); 4 tablespoons oil (such as olive or grapeseed); 4 tablespoons water; 1 cup matzoh meal; 1/2 teaspoon salt; 1/4 teaspoon pepper