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www.reference.com/article/common-signs-symbols-first-aid-59ece491165d9152

A white cross sign on a green background, an exit sign and a fire extinguisher sign are some common signs and symbols for first aid. A hospital road sign and a sign for the defibrillator are also signs that may be seen near or within a hospital.

www.reference.com/article/chemical-change-510015e00beee1ae

A chemical change is a process where two substances combine to form one or more new substances. This process is referred to as a chemical reaction, and it is not reversible.

www.reference.com/article/water-chemical-4dbd65b905160266

Water is a chemical because it is made of matter. Matter is any object that takes up space and has mass. Although water is a liquid, it still has mass and occupies space.

www.reference.com/article/traditional-medical-signs-symbols-ac7d0e50aed2f731

The caduceus and the red cross have traditionally been used to represent medicine and medical practices. The caduceus became a symbol of medicine in the United States due to a mistake in interpretation, according to the American College of Physicians, while the red cross symbol was adopted in 1863 b

www.reference.com/science/chemical-name-water-70983856c03b3c5e

The systematic names for water, as determined by the International Union of Pure and Applied Chemistry (IUPAC), are water and oxidane, although water is the more commonly used term by chemists. The traditional name has been retained for ease of communication.

www.reference.com/article/common-safety-sign-symbols-f487a6c296949701

Safety symbols available from Osha.gov include the skull and crossbones symbol, flame symbol, health hazard symbol and corrosion symbol, according to the Occupational Safety & Health Administration. The symbols contain black and white representations of various dangers. For example, the flame symbol

www.reference.com/world-view/signs-symbols-confirmation-490b8245d9ff0934

Signs and symbols of the Christian sacrament of confirmation include the anointing of the chrism, the sign of the cross and the laying on of hands. The sacrament concludes with the sign of peace.

www.reference.com/article/example-chemical-change-808da69443b2a4f2

Examples of a chemical change include rusting iron, burning wood, frying an egg and baking a cake. A chemical change occurs when the chemical composition of a substance changes irreversibly.

www.reference.com/article/chemical-energy-a59ce932784ef533

Chemical energy is a type of energy that is stored in the bonds that form between different chemical compounds. These bonds exist between different types of atoms and molecules. The energy that is stored inside of these bonds can be released through a chemical reaction, which usually has a number of

www.reference.com/article/chemical-property-fc98bd3371c1f2cc

A chemical property is a characteristic associated with a substance or reaction that is observable as it chemically changes or transforms into another substance. This chemical change produces a product that has a different composition than the original substance.