How energy is produced and managed from hydroelectric? In an impoundment facility, a dam is used to control the flow of water stored in a pool or reservoir. When more energy is needed, water is released from the dam. Once water is released, gravity takes over and the water flows downward through a turbine. As […]

How far can a fire extinguisher shoot? 5 to 20 feet What is the maximum distance in meters between a fire extinguisher and an employee? Fire extinguishers or extinguishing agents (media) shall be located not more than 15 m of travel distance from the Class D hazard. What is the OSHA standard for fire extinguishers? […]

What is the cohesive force of water? Cohesion of water Cohesion refers to the attraction of molecules for other molecules of the same kind, and water molecules have strong cohesive forces thanks to their ability to form hydrogen bonds with one another. Thus, the water molecules at the surface form stronger interactions with the neighbors […]

How nuclear energy affects the environment? Nuclear energy produces radioactive waste A major environmental concern related to nuclear power is the creation of radioactive wastes such as uranium mill tailings, spent (used) reactor fuel, and other radioactive wastes. These materials can remain radioactive and dangerous to human health for thousands of years. How can we […]

What substance does not freeze? supercooled Does a substance have to be cold to freeze? Tell students that the temperature at which a substance freezes is called the freezing point. The freezing point of water is 0 °C (32 °F). Corn oil and isopropyl alcohol have lower freezing points than water. This means that they […]

How do you calculate the amount of substance? The number of moles of a substance in a sample is the mass in g divided by the molar mass, which gives the amount in moles. These fundamental formulas are results of the definition of these terms. How many atoms are there in 10g of CaCO3? Hence, […]

What is viscosity flow rate? Flow rate​: is the volume of fluid that passes by a point in a certain amount of time. Flow rate is measured in mL/s and L/s or L/day. (or any combination of units that is volume and time) Viscosity:​ refers to how “thick” a fluid is. It is how easy […]

Can a white tiger and an orange tiger can be brother and sister? Inbreeding is the breeding of closely-related tigers together, eg Father to Daughter, or Brother to Sister. Outcrossing a white tiger to an unrelated orange tiger produces heterozygous cubs – ie orange tigers who carry the white gene. Can white tigers and orange […]

What are Interhalogens give examples? An interhalogen compound is a molecule which contains two or more different halogen atoms (fluorine, chlorine, bromine, iodine, or astatine) and no atoms of elements from any other group. Most interhalogen compounds known are binary (composed of only two distinct elements). Why are Interhalogens are more reactive than halogens? Interhalogen […]

What type of compound tastes sour reacts with metals and carbonates and turns blue litmus red? Acids Which of the following is characterized by a bitter taste and turn litmus blue? Bases turn red litmus paper blue, have a bitter taste, and are slippery to the touch. What type of substance tastes bitter feels slippery […]