Frames can be made to hold the lenses in several different ways. There are three common styles: full frame, half frame, and frameless. Full frame glasses have the frame go all around the lenses. Half frames go around only half the lens; typically the frames attach to the top of the lenses and on the side near the top.
Ethanol is a monohydric primary alcohol. It melts at - 117.3Â°C and boils at 78.5Â°C. It is miscible (i.e., mixes without separation) with water in all proportions and is separated from water only with difficulty; ethanol that is completely free of water is called absolute ethanol.t is miscible (i.e., mixes without separation) with water in all proportions and is separated from water only with difficulty; ethanol that is completely free of water is called absolute ethanol.
Best Answer: ACIDS-Substances that produce H+ ions in aqueous solution Physical Properties: 1. Acids have a sour taste eg.lemon juice,vinegar 2.they have a pH of less than 7 3.turns blue litmus paper red in color Chemical Properties: 1.Acids react with bases to form salt+water 2.Acids are corrosive in nature 3.E: what are physical and chemical properties of acids and bases? what are physical properties and chemical properties of acids? what are physical properties and chemical properties of bases?