Class Discussion 1: Matter

Matter Name Professor Course Date Matter exists in different forms everywhere in daily life and is part of daily activities. Tap water is a liquid and homogeneous mixture that mainly contains water H₂O which is a compound. It contains dissolved minerals such as calcium and magnesium thus it is a mixture rather than a pure substance. The air in the atmosphere is a homogeneous mixture of carbon dioxide, nitrogen, oxygen, and other gases and is a gas. Oxygen is an element and a critical component for biological respiration. Table salt (NaCl) is a solid compound that is a product of the chemical combination of chlorine and sodium (Chudy et al., 2025). It is a homogeneous mixture if it is iodized and contains added potassium iodide as well. Aluminum foil is a solid and, in most cases, a pure...