Firefighters need a strong understanding of chemistry for personal and public safety, to enhance the effectiveness of their efforts and to prevent adding to the many hazards present during a fire. A firefighter uses his or her understanding of the chemistry of building materials and furnishings as well as the interaction of suppression chemicals with fire.Know More
Firefighters use chemical principles on a daily basis, especially when choosing the right type of extinguisher in combating chemical or industrial fires. They must apply the right type and amount of extinguisher to fires. Some substances burn more intensely and more dangerously, even exploding violently in the presence of certain types of substances. Electrical and petrochemical fires, for example, cannot be extinguished with water. Some compounds such as metallic sodium and magnesium actually explode when exposed to water. This requires firefighters to understand the chemical properties of the substances that are present within the fire as well as those used to put the fire out.
Firefighters also use chemistry when protecting the public from the potentially hazardous substances produced in fires and released in chemical spills. Firefighters need to understand how to mitigate the risks to themselves and the public while also knowing how to treat those exposed or injured.Learn More
Bromine is used in everyday products such as pesticides and water treatment solutions. Bromine is a reddish-brown gas that has a pungent smell and can irritate the skin, nose and eyes. Bromine was discovered in 1826 by A.J. Balard.Full Answer >
A pressurized water reactor uses a nuclear reaction to heat water. It then transfers that heat to a steam generator to drive an electric turbine. These reactors use two completely separate water loops to ensure no radioactive water or steam escapes the system. After the steam drives the turbine, it is condensed and flows back into the system, cooling the water in the primary loop, which then cools the reactor.Full Answer >
Lemonade is a mixture because sugar, water and lemons are combined together without a chemical reaction taking place. The bonds of the substances can't combine with one another, instead the three items are mixed up.Full Answer >
Examples of mineral salts include sodium, calcium, ammonium phosphate, potassium, magnesium, chlorine, sulphur and phosphorus. Mineral salts are naturally occurring inorganic substances that are extracted from below the ground surface.Full Answer >