Hydrogen and oxygen react under a specificset of conditions to produce water accordingto the equation2 H2(g) + O2(g) −→ 2 H2O(g).How much hydrogen would be required toproduce 3.9 mol of water?Answer in units of mol.

im not exactly sure but i think its b!

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?

catya your not at all which answer i've seen you do this on another question!