What is the valence of K+? eight Why does K have no valence electrons? Elemental potassium has an [Ar] 4s1 electron configuration. One would say it has one valence electron. If we take that one valence electron away, it makes sense to say that it now has zero valence electrons because “1 – 1 = […]
Is Hannibal a cannibal?
Is Hannibal a cannibal? Hannibal Lecter M.D. (born January 20, 1933) is a Lithuanian-American serial killer, notorious for consuming his victims, earning him the nickname “Hannibal the Cannibal”. Orphaned at a young age, Lecter moved to the United States of America, becoming a successful psychiatrist. Is Hannibal Lecter a real person? Alfredo Ballí Treviño: The […]
What does a yellow buoy mark?
What does a yellow buoy mark? These marks are used to mark a special feature or area. These include area limits for anchorages, fishing grounds, or dredging/spoil areas. These buoys may be lighted, and if they are it will be a fixed or flashing yellow light. What do the buoy colors mean? Navigational Signals From […]
When the sun warms the sidewalk on a hot sunny day what type of energy conversion occurs?
Is fabric a good insulator?
Is fabric a good insulator? Fabrics like wool and fleece are great insulators and will keep your body warm over an extended period of time. On the reverse side, fabrics like lace and cotton don’t hold heat well, and won’t keep your body warm very long. What fabric holds heat the best? Wool Is polyester […]
Where does the dependent variable go in a hypothesis statement?
Where does the dependent variable go in a hypothesis statement? A hypothesis states a presumed relationship between two variables in a way that can be tested with empirical data. It may take the form of a cause-effect statement, or an “if x,…then y” statement. The cause is called the independent variable; and the effect is […]
What is the velocity of a sound wave traveling through air at a temperature of 18 degrees C?
What happens if your electric car runs out of battery?
What is a negative reinforcement example?
What is a negative reinforcement example? Deciding to take an antacid before you indulge in a spicy meal is an example of negative reinforcement. You engage in an action in order to avoid a negative result. One of the best ways to remember negative reinforcement is to think of it as something being subtracted from […]
Why does the temperature stay the same during a change of state?
Why does the temperature stay the same during a change of state? The temperature remains constant during the change of state because the heat energy which is supplied to change the state of matter is used in breaking the intermolecular forces and other attractive forces. Hence the temperature remains constant as all the heat is […]