I'm pretty sure it's B) Mass
Answer:D
Explanation:
Number of electrons=Number of protons
Sodium atom has 1 valence electron
Answer:
19.32
Explanation:
the density is given by the mass over volume
the mass In this case is 342.93 and the volume is 17.75
d=342.93g/17.75cm
=19.32g/cm
i hope this helps
Answer:(3)
Explanation: 2Al+3H2SO4----->Al(2SO4)3+3H2
