Chemistry, 06.05.2020 08:01 tyliahhayes
A normal breath takes about 1.0 L of air. assuming that air has an average molar mass of 28.8 g, and that its density is 0.9 7G/L how many molecules of air do you take in with each breath
Answers: 1
Chemistry, 22.06.2019 06:30
Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.
Answers: 3
Chemistry, 22.06.2019 10:00
Why is the structure of molecule important to its function?
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Chemistry, 22.06.2019 19:30
Anurse used a 0.02-mg/l solution of disinfection to clean a patients wound. what is the concentration of the solution expressed as a percentage?
Answers: 1
Chemistry, 22.06.2019 21:20
One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .
Answers: 2
A normal breath takes about 1.0 L of air. assuming that air has an average molar mass of 28.8 g, and...
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