In the reaction 2h2+, what coefficient should be placed in front of o2 to balance the reaction? a. 1b.2c.3d. no coefficient is needed

im doing test rn im going with 2 but ill give answer if itss wrong,   : )

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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