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Novay_Z [31]
2 years ago
10

HELP ME PLEASE AND HURRY !!!!!!

Physics
2 answers:
hodyreva [135]2 years ago
8 0

Answer:

mass number = protons + neutrons

AnnZ [28]2 years ago
3 0
The numbers of protons and neutrons determine an elements mass number. Subtract the number of protons from the neutrons or atomic number from the mass number
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Convertir 1200 ms a cs<br> Convertir 0,3 mm a cm.
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Answer:

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Explanation:

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The amount of energy (measured in calories) required to increase the temperature of 1 gram of a substance by 1 degree Celsius is
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