What is the ratio of calcium to fluoride ions? How many calcium ions like inside the unit cell? The structure as a whole is electrically neutral and thus the unit cell must be electrically neutral. Therefore Ca2+ and F- ions must be present in a 1:2 ratio. Is there any other ratio of zinc and […]
Is Colour change a physical or chemical property?
Is Colour change a physical or chemical property? Color. The changing of color of a substance is not necessarily an indicator of a chemical change. For example, changing the color of a metal does not change its physical properties. However, in a chemical reaction, a color change is usually an indicator that a reaction is […]
Why do electrons have spin?
Why do electrons have spin? Because electrons of the same spin cancel each other out, the one unpaired electron in the atom will determine the spin. There is a high likelihood for either spin due to the large number of electrons, so when it went through the magnetic field it split into two beams. What […]
What are the applications of soft and hard magnetic materials?
What are the applications of soft and hard magnetic materials? They are used in electrical rotating machine, electromagnet, electrical machine and transformer. It is used in communication equipment such as audio transformer, recording heads and magnetic modulators because of high initial permeability in feeble fields. They also possess low hysteresis and eddy current losses. Which […]
How much is a curie of radiation?
When can displacement be equal to distance?
When can displacement be equal to distance? Answer: When an object moves in a straight line in the fixed direction without coming back, it’s displacement and distance magnitude will always be equal. What is the symbol for hours and minutes? While the unit s , seconds is an SI standard, the symbols h for hours […]
What are the five major types of complementary and alternative medicine?
What are the five major types of complementary and alternative medicine? Complementary or alternative medicine can be classified into five major categories of practice: Whole medical systems. Mind-body techniques. Biologically based practices. Manipulative and body-based therapies. Energy therapies. Which of the following is a good way to choose a primary care physician? Five tips for […]
What happens to your body when you start eating healthy?
What happens to your body when you start eating healthy? Your body will become regular. This can come with a lower amount of bloating and discomfort along with looking slimmer as well. You’ll notice your moods are more stable. You have less ups and downs throughout the day and may even start to feel more […]