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Andrej [43]
3 years ago
6

. In the symbol (4/2) He, the superscript 4 is the _________________ for helium, and the subscript 2 is the ___________________

for helium.
Chemistry
1 answer:
Tpy6a [65]3 years ago
8 0
The superscript is the atomic mass and the subscript is the atomic number
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Which of the following equations is correct for coffee-cup calorimeter?
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The equation that is correct for coffee-cup calorimeter is q reaction = -q calorimeter. Details about coffee-cup calorimeter.

<h3>What is a calorimeter?</h3>

A calorimeter is an apparatus for measuring the heat generated or absorbed by either a chemical reaction, change of phase or some other physical change.

A coffee-cup calorimeter is a specific type of calorimeter that involves the absorption of heat of a reaction by water when a reaction occurs.

The enthalpy change of the reaction is equal in magnitude but opposite in sign to the heat flow for the water:

qreaction = -(qwater)

Therefore, the equation that is correct for coffee-cup calorimeter is q reaction = -q calorimeter.

Learn more about coffee-cup calorimeter at: brainly.com/question/27828855

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