Neon is a noble gas, so is very stable and has an atomic number of 10. So it has 10 protons and 10 neutons. So no it does not need to bond.
Rome is in Italy, which is represented by D.
I believe the cup within another would keep it warm the longest because it would insulate the heat within the main cup, that or you could just leave it in a microwave ^-^
Hope this sorta helps XD
Answer:
132 g/mol
Explanation:
(NH₄)₂SO₄ has 2 nitrogen atoms, 8 hydrogen atoms, 1 sulfur atom, and 4 oxygen atoms.
From the periodic table, the molar mass of each element is:
N: 14.0 g/mol
H: 1.01 g/mol
S: 32.1 g/mol
O: 16.0 g/mol
So the molar mass of the compound is:
2N × (14.0 g/mol N) + 8H × (1.01 g/mol H) + 1S × (32.1 g/mol S) + 4O × (16.0 g/mol O)
= 28.0 + 8.08 + 32.1 + 64.0 g/mol
= 132 g/mol
If you need more precision, use more significant figures for the element molar masses.
Answer:
B. The elements in the substance are mixtures of their isotopes.
