Hey, please I need help Dessert crêpes are made extra tasty when flambéed with a small amount of cognac. the alcohol in the cognac burns according to the following equation:
CH₃CH₂OH(aq)+O₂= CO₂(g)+H₂O(g)
ethanol
calculate the masses of the remaining compounds in the reaction if 12g of ethanol is used.

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car

Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.