Answer:
north is the word that best completes the sentence
They all help baked goods
Sodium bicarbonate(baking soda) is commonly reacts with acids such as buttermilk or lemon by creating a chemical reaction
Baking powder often reacts with bases by releasing a gas
Tartaric acid(cream of tartar) has a chemical reaction that creates a gas to lighten batter
Metallic bonds are bonds between 2 metals. Their electrons flow around freely unlike covalent or ionic bonds.