The chemical Urea Formaldehyde was used in some insulation in houses built during the mid to late 1960s. Unknown at the time was the fact that urea formaldehyde is 1 year. SHOW YOUR WORK  (a) what is the decay rate? (b)How long will it take 95% of the urea formaldehyde present to decay?

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.