A sample of hydrogen gas (3. 2 l) at 3. 5 atm and 25 °c was combined with 5. 2 l of nitrogen gas at 7. 3 atm and 25 °c at constant temperature in a 15. 0 l flask. Assuming the initial pressure in the flask was 0. 00 atm and the temperature upon mixing was 25 °c, what is the total pressure (atm) in the flask?.

The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.