Explain the system of symbols for elements
Not all element names come from english or latin words. the sysmbol for tungsten is W from the german word wolfram. the symbol for mercury is Hg from the greek word hydragyrum. Use the symbols W and Hg to explain the system of symbols for elements.
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Oscillation of a 170 Hz tuning fork sets up standing waves in a string clamped at both ends. The wave speed for the string is 520 m/s. The standing wave has four loops and an amplitude of 4.7 mm. What is the length of the string.
The PIRON Software Company currently develops marketing software for primarily service-based organizations. They obtained a sample of potential bids from the Phoenix market (shown in thousands below). The company's average or mean contract is $55,
A sample of tap water consists of water, fluoride ions, calcium ions, and several other dissolved ions. The ions are evenly distributed throughout the water.
An electron begins at rest, and then is accelerated by a uniform electric field of 800N/C that extends over a distance of 7 cm. Find the speed of the electron after it leaves the region of uniform electric field.
Not all element names come from english or latin words. the sysmbol for tungsten is W from the german word wolfram. the symbol for mercury is Hg from the greek word hydragyrum.
An antacid tablet from Brand A is broken in half. One of the pieces weighs 0.56g. This piece is stirred with water and 4 drops of phenolphthalein. Two burets are set up.
Body Mass Index (BMI) for newborns follows a normal distribution with a mean of 14 and standard deviation of .95. A doctor delivers 3 babies in a day. What is the probability the average BMI for three babies is smaller than 12?
A sample of propane (c3h8) is placed in a closed vessel together with an amount of O2 that is 2.50 times the amount needed to completely oxidize the propane to CO2 and h20 at constant temperature.
If initially .30 mol of Br2 and .30 mol Cl2 are introduced into a 1.0 L container at 400. K, what will be the equilibrium concentration of BrCl? Assume the initial product concentration is zero.
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