Does anti glare coating wear off? The average AR coating should last about 2 years in my experience under moderate temperature and cleaning abuse,but if you are exposing your glasses to more extremes they could break down within a few months. Can I put anti glare on my glasses myself? Can I Add Anti-Reflective Coating […]
What is a join between atoms called?
What is a join between atoms called? When two electrons are shared between two neighbouring atoms, they are said to be joined by a covalent bond. When covalent bonds form between atoms, the resulting entity is called a molecule with a fixed characteristic geometry. What is the basic unit of matter? In turn, the atom […]
Can atoms be broken down into smaller pieces?
Can atoms be broken down into smaller pieces? Under normal circumstances an atom can be broken down into any smaller particles, but we humans, have devised ways to break the atom apart. An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons. How many atoms are […]
What is the most dangerous indoor air pollution?
What is the most dangerous indoor air pollution? Cigarette Smoke What are the most threatening indoor air pollutants? The six most dangerous indoor air pollutants are: Asbestos. Carbon Monoxide. Lead. Mold. Radon. Volatile Organic Compounds (VOCs) What are the most harmful air pollutants? Pollen. Mold. Lead. Volatile Organic Compounds (VOCs) Carbon Monoxide (CO) Ozone (O3) […]
What is the significance of quantum number?
What is the significance of quantum number? Quantum numbers are important because they can be used to determine the electron configuration of an atom and the probable location of the atom’s electrons. Quantum numbers are also used to understand other characteristics of atoms, such as ionization energy and the atomic radius. Which of the following […]
What kind of a wave is sound?
What kind of a wave is sound? These particle-to-particle, mechanical vibrations of sound conductance qualify sound waves as mechanical waves. Sound energy, or energy associated with the vibrations created by a vibrating source, requires a medium to travel, which makes sound energy a mechanical wave. How ECHO is created? An echo is made by sound […]
What are 3 uses of beryllium?
What are 3 uses of beryllium? Beryllium is alloyed with copper or nickel to make springs, gyroscopes, electrical contacts, spot-welding electrodes and non-sparking tools, according to the Royal Society of Chemistry. Other beryllium alloys are used in high-speed aircrafts and missiles, as well as spacecraft and communication satellites. Why is beryllium so expensive? Beryllium is […]
What is the difference between absorption and reflection?
What is the difference between absorption and reflection? Reflection means that they are thrown back from a surface; absorption means that they are incorporated by a surface and transformed into heat energy. Different surfaces reflect and absorb differently. The ratio between absorption and reflection is called albedo. What is P in Beer’s law? Absorption takes […]
Is 1 degree Celsius cold or hot?
Is 1 degree Celsius cold or hot? In the Celsius scale there are 100 degrees between the freezing point and the boiling point of water compared to 180 degrees in the Fahrenheit scale. This means that 1 °C = 1.8 °F (check the section about temperature differences below). What is the coldest Fahrenheit temperature? The […]
What is the homogeneous product?
What is the homogeneous product? A homogeneous product is one that cannot be distinguished from competing products from different suppliers. In other words, the product has essentially the same physical characteristics and quality as similar products from other suppliers. One product can easily be substituted for the other. What is homogeneous and differentiated products? 1. […]