Which type of orbital is not allowed? The answer is d) 2d. Without going into too much detail, the 2d orbitals cannot exist because they are not allowed solutions to the Schrodinger equation. Simply put, the second energy shell, designated by a principal quantum number equal to 2, or n=2 , can only hold s […]
What is a high resistance wire?
What is a high resistance wire? Resistance wire is used to control the amount of current in a circuit. High resistivity is better since a shorter wire can then be used. When it is used for heating elements for applications such as electric heaters and toasters, high resistivity and oxidation resistance is important. What’s the […]
Who has most natural gas?
Who has most natural gas? Russia How many years of natural gas are left? 52 years How long will our natural gas supply last? about 84 years Which country has most gas? Who buys Russian gas? The largest importers of Russian gas in the European Union are Germany and Italy, accounting together for almost half […]
Is Type 1 or 2 error worse?
Is Type 1 or 2 error worse? Of course you wouldn’t want to let a guilty person off the hook, but most people would say that sentencing an innocent person to such punishment is a worse consequence. Hence, many textbooks and instructors will say that the Type 1 (false positive) is worse than a Type […]
What is the most common compound?
What is the most common compound? Glossary Compound Formula Abundance percent by weight Silicon dioxide SiO2 42.86% Magnesium oxide MgO 35.07% Ferrous oxide FeO 8.97% Aluminum oxide Al2O3 6.99% How do you know the difference between a compound and mixture? Compound:a substance that is made up of more than one type of atom bonded together. […]
What happens when satellites crash?
What happens when satellites crash? The Short Answer: Two things can happen to old satellites: For the closer satellites, engineers will use its last bit of fuel to slow it down so it will fall out of orbit and burn up in the atmosphere. Further satellites are instead sent even farther away from Earth. How […]
What are the three main parts of a blueprint?
What are the three main parts of a blueprint? Blueprints are documents that contain three major elements: the drawing, dimensions, and notes. The drawing illustrates the views of the part necessary to show its features. Together, the extension and dimension lines on the drawing indicate dimensions and specific tolerance information of each feature. What does […]
Why do we only have one tide a day?
Can crying and stress affect unborn baby?
Can crying and stress affect unborn baby? Can crying and depression affect an unborn baby? Having an occasional crying spell isn’t likely to harm your unborn baby. More severe depression during pregnancy, however, could possibly have a negative impact on your pregnancy. What does cortisol do to a fetus? “The stress hormone cortisol may be […]
What do plants use to make their own food?
What do plants use to make their own food? The process by which land plants produce their own food using sunlight and carbon dioxide is known as photosynthesis (Figure 1). While carbon dioxide is absorbed by the leaves, the sunlight is captured by a chemical molecule in the plant, called chlorophyll (Chl). All photosynthetic organisms […]