Typically, when a person coughs, he or she first inhales about 2.40 l of air at 1.00 atm and 25 ∘c. the epiglottis and the vocal cords then shut, trapping the air in the lungs, where it is warmed to 37 ∘c and compressed to a volume of about 1.70 l by the action of the diaphragm and chest muscles. the sudden opening of the epiglottis and vocal cords releases this air explosively. just prior to this release, what is the approximate typically, when a person coughs, he or she first inhales about 2.40 l of air at 1.00 atm and 25 ∘c. the epiglottis and the vocal cords then shut, trapping the air in the lungs, where it is warmed to 37 ∘c and compressed to a volume of about 1.70 l by the action of the diaphragm and chest muscles. the sudden opening of the epiglottis and vocal cords releases this air explosively. just prior to this release, what is the approximate pressure of the gas inside the lungs? pressure of the gas inside the lungs?

Follow the steps provided in the simulation to add water to the graduated cylinder, select one of the three samples (copper, silver, or gold), set its mass to the values given in the statements below, and calculate its density. here is a summary of the steps required: add water by clicking and holding prepare a known volume of water button. until the desired volume of water has been added. if more than the desired volume is added, click the reset button. button and redo the procedure. a single click will add about 21.0 ml of water. to set the mass, click and hold weigh out metal button. until the desired amount of metal is added to the weighing pan. once the desired mass of the metal is added, release the button. transfer the metal to water and then click on calculate density button. to see how the density is calculated using water displacement to measure the volume of the solid. to save time you can approximate the initial volume of water to â±1 ml and the initial mass of the solid to â±1 g. for example, if you are asked to add 23 ml of water, add between 22 ml and 24 ml. which metals in each of the following sets will have equal density? check all that apply.

Identify and describe the three ways that mutations affect organisms.

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?