Which best describes the energy change that takes place during deposition? ОООО
Heat energy is released by the substance.
Heat energy is maintained by the substance.
Heat energy is slowly gained by the substance.
Heat energy is quickly absorbed by the substance.

Heat energy is released by the substance.

Explanation:

Deposition is a phase change from the gas phase into a solid form or the most condensed form.

So statement that best describes the energy change that takes place during deposition is that heat energy is released by the substance.

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)