If I use the dropped to add 10 mL of drink mix to 50 mL of water, what is the percent by volume of the drink mix in the solution?

What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold

1) this is the structure in the cell nucleus that houses a cell's genetic information

Determine the reaction and balance the following equations urgent due in the morning