B. How much energy is required to heat 2 kg of water through the following changes? Use values from latent heat and specific heat constant tables when necessary. Show your work. (10 points) i. Heat 2 kg ice from –5°C to 0°C (2 points)

ii. Melt 2 kg ice at 0°C (2 points)

iii. Heat 2 kg water from 0°C to 100°C (2 points)

iv. Vaporize 2 kg water at 100°C (2 points)

v. Heat 2 kg steam from 100°C to 115°C (2 points)

Jenny places a strip of ph paper into a solution. when she removes the ph paper, it has turned yellow-green. what should jenny do next to determine the ph of her solution? a. use a different testing method because the ph paper should not change colors b. place the ph paper into a machine that reads the ph of the solution c. compare the ph paper's color with the color of ph paper from another solution d. compare the ph paper's color with a chart of colors and ph ranges