A student observes that two objects with identical masses require different amounts of heating to achieve the same temperature change with no phase change. The most likely explanation is

The objects started at different temperatures

Both of the objects have the same specific heat.

The objects are composed of different materials.

One object was heated more quickly than the other.

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?