While gina conducts a calorimetry investigation, she observes the temperature change of a reaction in a sealed, insulated calorimeter. would you consider the calorimeter an example of a closed, open, or isolated system? explain your answer in complete sentences.

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m

Compare and contrast refraction of light and sound will give brainliest