What term describes a substance made up of atoms of two or more different elements joined by chemical bonds?

What term describes a substance made up of atoms of two or more different elements joined by chemical bonds?

• A. Mixtures
• B. Compound
• C. Ionic compound
• D. Elements

Answer: (B)

When two or more different elements are joined by chemical bonds, the substance is a compound. The key idea is that the atoms are connected by bonds and combined in fixed proportions, forming a new substance with properties different from the elements alone. For example, water is a compound made from hydrogen and oxygen in a 2:1 ratio, held together by covalent bonds. This is different from mixtures, where substances are just physically blended and can vary in proportion and be separated by physical means. Elements are pure substances consisting of only one type of atom. So this description points to a compound.

When two or more different elements are joined by chemical bonds, the substance is a compound. The key idea is that the atoms are connected by bonds and combined in fixed proportions, forming a new substance with properties different from the elements alone. For example, water is a compound made from hydrogen and oxygen in a 2:1 ratio, held together by covalent bonds. This is different from mixtures, where substances are just physically blended and can vary in proportion and be separated by physical means. Elements are pure substances consisting of only one type of atom. So this description points to a compound.