WILL GIVE BRAINLIEST A student heated some matter, which caused some of its properties to change. A change in which two properties would indicate that the matter
underwent a chemical reaction?
A. State
B. Temperature
C. Melting point
D. Color

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?