12. A vessel with an intemal volume of 11.6 L contains 2.80 g of nitrogen gas, 0.403 g of hydrogen gas, and 79.9 g of argon gas. what is the pressure (in atm) inside the vessel at 25 °C?
a. 652 atm
b. 0.407 atm
c. 4.85 atm
d. 0.206 atm
e. 175 atm

In which situation can a mixture always be called a solution

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o → k + o2 (b) na + i2 → nai (c) cu(no3 )2 + naoh → cu(oh)2 + nano3 (d) kclo3 → kcl + o2 (e) ca(no3 )2 + hbr → cabr2 + hno3 (f) sn(oh)2 → sno + h2 o (g) p4 + n2 o → p4 o6 + n2 (h) fe + al2 (so4 )3 → feso4 + al (i) alcl3 + na2 co3 → al2 (co3 )3 + nacl (j) c3 h6 + o2 → co2 + h2 o