How many types of indicators are there? Types of Indicators Artificial and Natural indicators are the two types of Chemical indicators. Litmus, red cabbage, turmeric, china rose are a number of the present indicators around us. What is another type of indicator? An indicator prepared from natural substances is known as natural indicator. Examples are […]
Why is there vacuum above the level of mercury in a mercury barometer?
Why is there vacuum above the level of mercury in a mercury barometer? The top of the barometer is filled with nothing (vacuum) because the mercury must have the space to expand and contract without any other force affecting it; a gas or liquid in the top would have its own pressure against the mercury […]
What does 1 dB mean?
What is the significance of knowing strengths and weaknesses of a research work?
What is the significance of knowing strengths and weaknesses of a research work? Knowing your weaknesses allows you to understand how you can work around them. Strengths and weaknesses are part of being self-aware. When you know your strengths and weaknesses, you can create a development strategy that focuses on your specific development needs. What […]
What holds a nucleus together?
What holds a nucleus together? The strong nuclear force. At extremely short range, it is stronger than electrostatic repulsion, and allows protons to stick together in a nucleus even though their charges repel each other. Remember that the size of the nucleus is really small compared to the size of an atom. What makes a […]
What is the formula for calculating core area?
What is the formula for calculating core area? The equation you will need to use is: A = L x W. This answer will be in millimeters squared, and effective core area is always reported in millimeters squared (mm^2), so you have no factor conversion to make here. How do you find the cross sectional […]
What is meant by Vsepr theory?
What is meant by Vsepr theory? The VSEPR theory assumes that each atom in a molecule will achieve a geometry that minimizes the repulsion between electrons in the valence shell of that atom. Repulsion between these pairs of electrons can be minimized by arranging them so that they point in opposite directions. Why is Vsepr […]
How long does it take to settle a rear end collision?
How long does it take to settle a rear end collision? After reaching a settlement agreement, you might be wondering how long it will take until you receive your compensation. For cases with minor crashes and minor damages, cases typically take 30 to 90 days. If your case goes to court, it could take years […]
What vehicles must stop at all railroad crossings NY DMV?
What vehicles must stop at all railroad crossings NY DMV? Most buses and some trucks must stop at railroad crossings. (See “Railroad Crossing Signals”.) Flashing red lights, lowered crossing gates and/or a bell at a railroad crossing indicate that you must stop, at least 15 feet (5 m) from the tracks. What is the appropriate […]
What are the mixtures that Cannot be separated?
What are the mixtures that Cannot be separated? An element is a pure substance that cannot be separated into simpler substances by chemical or physical means. There are about 117 elements. What jobs use separation techniques? Familiar professions that use separation techniques Chefs – decanting, sieving, filtering. Dentists – safe disposal of mercury fillings (filtering). […]