The answer is number 4 or the exchange of energy with the surroundings. Calorimetry is a measurement of energy that is formed or absorbed in a certain process. The calorimeter is the instrument used in order to measure the energy. It is recommended that a calorimeter should be a closed system so as to measure precisely the energy and avoid or lessen the exchange of energy with the surroundings. Thus, comparing an open ceramic mug and an insulated mug with a lid, the greatest difference is the energy lost to the surroundings.
They represent elements by using symbols
Answer:
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Answer:
Atom
Explanation:
An atom is the smallest quantity of any given element.
An atom includes a nucleus (which includes protons and neutrons) around which are located the electrons. That's that specific assembly of nucleus and surrounding electrons that form an atom and define which element it is.
So,
electron: negative charge in orbit of the nucleus
proton: positively-charged particle inside the atomic nucleus
neutron: neutral particle inside the atomic nucleus
atom: ensemble of the nucleus and electrons, defining a given element.
