This question is practice and is worth zero points. alum is a compound used in a variety of applications including cosmetics, water purification, and as a food additive. it can be synthesized from aluminum metal, sulfuric acid, water, and potassium hydroxide, as seen in the equation. 2 al(s) + 2 koh(aq) + 4 h2so4(aq) + 10 h2o(l) ⟶ 2 kal(so4)2∙12 h2o(s) + 3 h2(g) alum using the data, determine the theoretical and percent yield for this alum synthesis. note that aluminum is the limiting reactant. description mass (g) bottle mass 10.302 bottle mass with aluminum pieces 12.279 final product and bottle mass 18.475 what is the theoretical yield of alum?

chemical energy is stored in the chemical bonds of atoms and molecules. it can only be seen when it is released in a chemical reaction. when chemical energy is released, the substance from which the energy came is often changed into an entirely different substance.

this chemical reaction releases energy in the form of light and heat. chemical energy is the potential energy stored in the arrangement of atoms within molecules. breaking chemical bonds requires energy, while forming new chemical bonds releases energy.

the atp molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule. in this form,energy can be stored at one location, then moved from one part of the cell to another, where it can be released to drive other biochemical reactions.

let that person have a turn to speak : )

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

the answer would be a