What is sodium-22 used for? use of sodium Of the radioactive artificial isotopes, sodium-22 (2.6-year half-life, the longest half-life of a sodium isotope) is used as a radioactive tracer for natural sodium. Sodium-24 (15-hour half-life) is limited in use by its short life and is produced by irradiation in a nuclear reactor. Is sodium-22 stable? […]
When was the last magnetic reversal?
When was the last magnetic reversal? The reversal was dated to approximately 15 million years ago. In August 2018, researchers reported a reversal lasting only 200 years. But a 2019 paper estimated that the most recent reversal, 780,000 years ago, lasted 22,000 years. How long does it take for Earth magnetic field to reverse? about […]
What does a concave lens look like?
What is the relationship between basic and applied research?
What is the relationship between basic and applied research? Applied research is a research methodology that creates practical solutions for specific problems while basic research is an approach to research that seeks to expand knowledge in a field of study. This means that applied research is solution-driven while basic research is knowledge-specific. What is the […]
Can you hear without middle ear bones?
Can you hear without middle ear bones? The piston-like action generates vibrations in the fluid-filled inner ear that are used to signal the brain of a sound event. Without the middle ear ossicles, only about 0.1 percent of sound energy would make it into the inner ear. How do you test for otosclerosis? Otosclerosis is […]
Do lights in equal distance away from you have the same brightness?
Do lights in equal distance away from you have the same brightness? The intensity or brightness of light as a function of the distance from the light source follows an inverse square relationship. Notice that as the distance increases, the light must spread out over a larger surface and the surface brightness decreases in accordance […]
What foods can reverse diabetes?
What foods can reverse diabetes? The 16 Best Foods to Control Diabetes Fatty Fish. Some people consider fatty fish to be one of the healthiest foods on the planet. Leafy Greens. Leafy green vegetables are extremely nutritious and low in calories. Avocados. Eggs. Chia Seeds. Beans. Greek Yogurt. Nuts. What is the main cause of […]
When a metal jar lid is difficult to remove from a glass jar you can run hot water on the lid and then it is easier to open Why?
What are the 3 kinds of solubility?
What are the 3 kinds of solubility? Based on the concentration of solute dissolves in a solvent, solutes are categorized into highly soluble, sparingly soluble or insoluble. Does base increase solubility? The anion in sparingly soluble salts is often the conjugate base of a weak acid that may become protonated in solution, so the solubility […]
Why is alkaline hydrolysis preferred?
Why is alkaline hydrolysis preferred? Hydrolysis using dilute alkali There are two big advantages of doing this rather than using a dilute acid. The reactions are one-way rather than reversible, and the products are easier to separate. Why is hydrolysis reversible? Hydrolysis is a reversible reaction, meaning that the alcohol and acid groups can react […]