Theory; Is well-explained systems of ideologies that tries to explain and understand physical, chemical, cosmic phenomenons based on evidence, claims, and observations.
Total energy of an isolated system remains constant throughout time; this is referred to as conservation of energy.
It is a stable isotope of lead metal. this isotope is of nonradioactive nature. The isotope occur naturally but can also be produced by fission reaction.
It appears as gray powder. With molecular weight of 207.9g/mol.
The boiling point is 1740° while the melting point is 327.4°
It is immediately available as typical and in custom packing of different grade of food, agriculture and pharmaceuticals.
it is used for biomedical and biological labelling. It is also used to measure pb (lead) level in blood by glycogen isotope dilution technique.
The answer to that question is B
A. The reactants that run out first
Easy!
