Dissolving NaOH(s) in water is exothermic. Two calorimetry experiments are set up.2 g of NaOH are dissolved in 100 mL of water. 4 g of NaOH are dissolved in 200 mL of water. Which of the following statements is true? a. the second temeprature change will be approximately twice the first.
b. the second temperature change will be approximately four times the first.
c. both temperature changes will be the same.
d. the second temperature change will be approximately one-half of the first.
e. the second temperature change will be approximately one-fourth the first.

Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydroxide.

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

What is the independent variable in this investigation? mass volume sample number substance density