Question

chapter 2 important terms
define these terms from chapter 2 of your text. due 10/1

1. acid
2. adenosine triphosphate
3. base
4. carbohydrate
5. compound
6. covalent bond
7. electrolyte
8. element

Explanation:

1. Acid: A substance that donates hydrogen ions (H⁺) in solution.
2. Adenosine triphosphate (ATP): A molecule that stores and transfers energy in cells.
3. Base: A substance that accepts hydrogen ions (H⁺) or donates hydroxide ions (OH⁻) in solution.
4. Carbohydrate: A biological molecule consisting of carbon, hydrogen, and oxygen atoms, often used for energy storage and structural support.
5. Compound: A substance made up of two or more different elements chemically combined in a fixed ratio.
6. Covalent Bond: A chemical bond formed by the sharing of electron pairs between atoms.
7. Electrolyte: A substance that dissociates into ions in solution and conducts electricity.
8. Element: A pure substance made up of only one type of atom.

Answer:

1. A substance that donates hydrogen ions (H⁺) in solution.
2. A molecule that stores and transfers energy in cells.
3. A substance that accepts hydrogen ions (H⁺) or donates hydroxide ions (OH⁻) in solution.
4. A biological molecule consisting of carbon, hydrogen, and oxygen atoms, often used for energy storage and structural support.
5. A substance made up of two or more different elements chemically combined in a fixed ratio.
6. A chemical bond formed by the sharing of electron pairs between atoms.
7. A substance that dissociates into ions in solution and conducts electricity.
8. A pure substance made up of only one type of atom.