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When the following equation is balanced using the smallest possible integers, what is the number in front of the substance in bold type? PCl5 + H2O H3PO4 + HCl
Primary Aging
The natural, biological process of aging that is genetically programmed and inevitable.
Secondary Aging
The decline in physical and mental capacity resulting from lifestyle behaviors and environmental factors rather than genetic programming.
Tertiary Aging
The decline in physical and cognitive function that occurs due to diseases and poor health habits rather than normal aging.
Gerontologists
Scientists who study aging and the various aspects associated with it, including the biological, psychological, and social changes.
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