When a balloon is blown up then let go, air molecules rush out of the balloon and join the air molecules in the Earth's atmosphere. What happens to the enthalpy in the balloon?

Select the correct answer how does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? ca the value of is negative the value of qis positive the value of a remains constant the value of a decreases the value of equals zero e

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?