If two hydrogen (H) atoms combined to form a helium (He) atom, a ________ reaction has occurred. a. fusion b. fission c. physical d. chemical

asked Jul 12, 2017 48.5k views

5 votes

If two hydrogen (H) atoms combined to form a helium (He) atom, a ________ reaction has occurred.

a. fusion
b. fission
c. physical
d. chemical

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3 votes

a. fusion

A fusion reaction is when two smaller molecules join to form a larger molecule and energy is relased

JetJack answered Jul 17, 2017

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