homogeneous
Wine, air, and gunpowder are other examples of common homogeneous mixtures Figure below . Their exact compositions can vary, making them mixtures rather than pure substances. Wine is a liquid mixture of water, ethanol, and a variety of other dissolved substances. Air is a mixture of nitrogen gas 78% , oxygen gas 21% , and small amounts of various other gases. Gunpowder is a solid mixture comprised of potassium nitrate 75% , charcoal 15% and sulfur 10% .