Given the number of protons, neutrons and electrons, find the mass and name of an isotope (What steps/thinking do you use in this process?)

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products

b. examine and describe cells

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

5.6⋅10−^19  j

do you need the explaination?