Answer:
Please did you ever get an answer??
Explanation:
Im doing usa test prep too and its really late
Isotopes are the atoms of the same element with same atomic number but different mass number isotopes of same element have same chemical properties due to same number of electrons atomic number of an atom is the number of electrons protons in it and mass number is the sum of protons
The ice cube i think is really cold
2.5 moles of NaCl as a single particle albeit, a fairly large particle, weighing in at about 146.1 grams
Answer:A
Explanation:APEX just told me the answer