An ideal gas in a 1.25-gallon container is at a temperature of 125 degrees celsius and pressure of 2.5 atmospheres. if the gas is oxygen(formula: o2 molecular weight = 32 grams per mole), what is the mass of gas in the container in units of grams?

Zinc + lead(ii) nitrate yield zinc nitrate + leadwhat's the chemical equation for this?

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

Explanation for basic character?