Some medicine aren't resistant to heat or humidity.
Answer:
Atomic number=No. of protons=No. of electrons in ground state(unchanged atom)
Atomic number=13=No. of protons
Atomic mass=no. of protons+no. of neutrons=13+14=27
For isotope no. of proton=13(same atomic number but different mass number are isotopes)
no. of electrons=13
no. of neutrons=14+2=16
Explanation:
hope it's help you
Answer:
If you have 20.8 grams of zinc, you would around 0.318 moles
Explanation:
1 mole of Zn is around 0.015295.
When you multiply 0.015295 and 20.8, you would get around 0.318 moles so:
1 mole Zn = 0.015295
20.8 × 0.015295 = 0.318
Answer:
2 grams.
Explanation:
H2 + O2 ---> H2O2
Using molar masses:
2*1 g hydrogen reacts with 2*16 g oxygen.
so 2g H2 reacts with 32 g O2.
