In a mixture of three noble gases, argon has a partial pressure of 0.3 atm and the neon has a partial pressure of 1.7 atm. The total pressure of the mixture is 5.1 atm. What is the pressure of the third gas, krypton?
O 3.1 atm
O 2.8 atm
O 2.3 atm
O 7.4 atm

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What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold

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How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options: