Which is kept in kerosene? Sodium Can sodium and potassium be stored in water? Explanation: Sodium and potassium metals reacts very vigorously with water; this reaction gives out so much heat that the hydrogen evolved catches fire. Therefore, these metals are stored under kerosene. What happens when you mix potassium and sodium? Sodium reacts more […]
What is the main source of electromagnetic waves?
What is the main source of electromagnetic waves? the sun Which electromagnetic waves have the highest energy? Gamma rays have the highest energies and shortest wavelengths on the electromagnetic spectrum. What is a really good example of electromagnetic radiation? Examples of EM radiation include radio waves and microwaves, as well as infrared, ultraviolet, gamma, and […]
What is the area and circumference of the circle?
What is the area and circumference of the circle? In geometry, the circumference (from Latin circumferences, meaning “carrying around”) of a circle is the (linear) distance around it. That is, the circumference would be the length of the circle The area of a circle is pi (approximately 3.14) times the radius of the circle squared. […]
What is it called when the ocean floor sinks back into the mantle?
What is it called when the ocean floor sinks back into the mantle? 9. The process by which the ocean floor sinks into the mantle is called Subduction .. What are 2 pieces of evidence that support seafloor spreading? Look at Figure 19 to see the process of sea-floor spreading. Several types of evidence from […]
Who is responsible for the 200 year death of chemistry?
Who is responsible for the 200 year death of chemistry? Death to the field of Chemistry for 2000 years! In the early 1800s, the English Chemist John Dalton performed a number of experiments that eventually led to the acceptance of the idea of atoms. He formulated the first atomic theory since the “death of chemistry” […]
What are the effects of water deficiency?
What are the effects of water deficiency? Dehydration is a deficiency of water in the body. Vomiting, diarrhea, excessive sweating, burns, kidney failure, and use of diuretics may cause dehydration. People feel thirsty, and as dehydration worsens, they may sweat less and excrete less urine. If dehydration is severe, people may be confused or feel […]
What are 3 major milestones in growth and development that an infant should achieve in the first year of life?
What are the three factors that contribute to the resting membrane potential?
What are the three factors that contribute to the resting membrane potential? Membrane potentials in cells are determined primarily by three factors: 1) the concentration of ions on the inside and outside of the cell; 2) the permeability of the cell membrane to those ions (i.e., ion conductance) through specific ion channels; and 3) by […]
Can copper become an electromagnet?
Can copper become an electromagnet? An electromagnet is a magnet that works with electricity. It can be switched on and off. The coils are nearly always made of copper wire because copper is such an excellent electrical conductor. Does copper contain electricity? Copper has the best electrical conductivity of any metal, except silver. A good […]