When a salt dissolves in water, it produces either a hydrogen ion or a hydroxyl ion. truefalse

1. watermelon, papaya, oranges, bananas, and lemons are included in this food group. vitamin c 2. you need 6 or more servings of this food group each day vitamins d and a 3. found in fruit and keeps blood vessels healthy calcium 4. vitamins found in milk bread and grain 5. a mineral that strengthens bones fruit

20 the compound al(nh3)2 has atoms of nitrogen.

Give examples of selective advantage of organism’s body part/organ