Question

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quantifies hot and cold.
is the change in energy of a system that results from heat flowing between a
system and its environment.
heat always flows from a object to a object.
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did i get this
an is a type of reaction that absorbs heat. the physical observation of
this type of reaction would be.
an is a type of reaction that releases heat. the physical observation of this type
of reaction would be.

Explanation:

• Temperature is a measure that quantifies how hot or cold something is.
• Heat is the energy transfer due to temperature differences.
• Heat transfer follows the second - law of thermodynamics: it moves from a hotter object to a colder one.
• Endothermic reactions absorb heat, making the surroundings feel cold.
• Exothermic reactions release heat, making the surroundings feel hot.

Answer:

1. Temperature
2. Heat
3. hotter; colder
4. endothermic reaction; surroundings feel cold
5. exothermic reaction; surroundings feel hot