Cold packs are designed to become very cold when activated. when the pack is activated, a chemical reaction occurs to make the temperature of the cold pack do you create. what must be true of this chemical reaction? a. reaction releases energy into it surroundings b. products and reactants have the same amount of energy c. i don’t have plus i don’t hate him i reactants. d. the reaction absorbs energy from at surroundings

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.