What is the atomic number of an ion with a –2 charge when it has 18 electrons? Data sheet and Periodic Table
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What is the final temperature when a 5.0 g sample of brass i…
What is the final temperature when a 5.0 g sample of brass initially at 25 oC absorbs 75 J of heat? The specific heat of brass is 0.38 J·g–1·°C–1. Data sheet and Periodic Table
What is the percent yield when 1.72 g of H2O2 decomposes and…
What is the percent yield when 1.72 g of H2O2 decomposes and produces 375 mL of O2 gas measured at 42 oC and 1.52 atm? The molar mass of H2O2 is 34.02 g∙mol–1. 2H2O2(aq)2H2O(l) + O2(g) Data sheet and Periodic Table
The figure represents the initial contents of a reaction ves…
The figure represents the initial contents of a reaction vessel mixture of nitrogen monoxide (NO) and oxygen (O2) at a pressure of 1 atm. Keeping the volume and temperature constant, what are the final total pressure (Ptot) and partial pressure of nitrogen dioxide (PNO2) when the reaction is complete (assuming a 100% yield)? 2NO(g) + O2(g)2NO2(g) Data sheet and Periodic Table
An enriched sample of carbon contains 20.0% 12C and 80.0% 13…
An enriched sample of carbon contains 20.0% 12C and 80.0% 13C. Which figure shows this sample?Stem image: Key: Data sheet and Periodic Table
EXTRA CREDIT: The principle tissue found behind the retromam…
EXTRA CREDIT: The principle tissue found behind the retromammary space is
The ratio of doses received with and without the wedge on th…
The ratio of doses received with and without the wedge on the central axis at a point 10 cm beyond the depth of maximum dose in a phantom is called the
You did a CT simulation on your patient’s abdomen for treatm…
You did a CT simulation on your patient’s abdomen for treatment of the pancreatic head. The mass on the scan image is 2.87cm. The lesion’s true size is 2.54 cm. What is the object percentage of magnification?
You did a CT simulation on your patient’s abdomen for treatm…
You did a CT simulation on your patient’s abdomen for treatment of the pancreatic head. The mass on the scan image is 2.87cm. The lesion’s true size is 2.54 cm. What is the object percentage of magnification?
A secondary electron that is produced that can cause further…
A secondary electron that is produced that can cause further ionization is a called a