Salt is both strong and brittle. These properties relate to its atomic bonds. Examine a toothpick and try to bend it. Then imagine hitting the end of an upright toothpick with a hammer. Is a toothpick a good model for showing the strength and brittleness of salt? Explain your answer.

Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?