<span>37.9968064 ± 0.0000010 g/mol</span>
He concluded that all tissues are made up of cells.
Answer:
A is a physical change, no atoms are being lost its still in it original form
B is a chemical change, it is losing atoms and changing into a new substance
Explanation:
nitrogen-14, which makes up the vast majority of naturally occurring nitrogen, and nitrogen-15, which is less common.
A Geiger counter is a type of particle detector that measures ionizing radiation. Geiger counters are used to detect ionizing radiation
