How do you calculate how much energy it takes to heat a certain amount of a certain material to a certain temperature? I have access to a latent heat table and specific heat constant table. Thanks for the help! Some examples:
1. Heat 2 kg ice from –5°C to 0°C
2. Melt 2 kg ice at 0°C
3. Heat 2 kg water from 0°C to 100°C

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

what does the table look like

lol for the pointsss