The atom is krypton and its symbol is Kr.
the mass number is 41 + 36 = 77
its charge is 0 as it is a noble gas.
Answer:
Which phrase best describes wave motion? Movement of energy through space or a medium.
Explanation:
Answer option A.
Answer:
5 g of H₂ are contained in the vessel
Explanation:
A typical excersise of conversion:
We determine molar mass of H₂.
This is a dyatomic molecule, as molar mass of H is 1g/mol, molar mass of H₂ will be 2g/mol.
Let's make the conversion of units:
2.5 mol . 2g/mol = 5 g
5 g of H₂ are contained in the vessel
The given (2.50mol), is multiplied by the molar mass of Iron(II)Hydroxide, which is 89.86 grams, so the equation would be
89.86x2.5=224.65g/mol
Hope this helps!