The metals are elements which have low ionization potential and can lose electrons easily
the other physical characteristics associated with them and hence with Aluminium are
a) they can conduct electricity in molten state, hence It would only conduct electricity if it were melted.
b) It could be stretched into a thin wire. It means it is ductile.
In case of given aluminium metal the correct answer is
it could be stretched to thin wire
Answer:
it is formed by covalent bonds. the oxygen atom shares one elctron with each chlorine atom, forming single covalent bonds ( cl — o — cl )
Answer:
A) 8.51 × 10²⁴
Explanation:
1. Gather all the information
2H₂S + SO₂ ⟶ 3S + 2H₂O
n/mol: 9.42
2. Calculate the moles of S atoms
The molar ratio is 3 mol S:2 mol H₂S
![\text{Moles of S} = \text{9.42 mol H$_{2}$S} \times \dfrac{\text{3 mol S }}{\text{2 mol H$_{2}$S }} = \text{14.13 mol S}](https://tex.z-dn.net/?f=%5Ctext%7BMoles%20of%20S%7D%20%3D%20%5Ctext%7B9.42%20mol%20H%24_%7B2%7D%24S%7D%20%5Ctimes%20%5Cdfrac%7B%5Ctext%7B3%20mol%20S%20%7D%7D%7B%5Ctext%7B2%20mol%20H%24_%7B2%7D%24S%20%7D%7D%20%3D%20%5Ctext%7B14.13%20mol%20S%7D)
3. Calculate the atoms of S
![\text{Atoms of S } = \text{14.13 mol S} \times \dfrac{6.022 \times 10^{23}\text{ S atoms}}{\text{1 mol S}} = \mathbf{8.51 \times 10^{24}}\textbf{ S atoms}](https://tex.z-dn.net/?f=%5Ctext%7BAtoms%20of%20S%20%7D%20%3D%20%5Ctext%7B14.13%20mol%20S%7D%20%5Ctimes%20%5Cdfrac%7B6.022%20%5Ctimes%2010%5E%7B23%7D%5Ctext%7B%20S%20atoms%7D%7D%7B%5Ctext%7B1%20mol%20S%7D%7D%20%3D%20%5Cmathbf%7B8.51%20%5Ctimes%2010%5E%7B24%7D%7D%5Ctextbf%7B%20S%20atoms%7D)
The amount of Mg(OH)2 present after the reaction is complete is 0.136 moles of Mg(OH)2.
The equation of the reaction is;
2HNO3(aq) + Mg(OH)2(aq) -------> Mg(NO3)2(aq) + 2H2O(l)
Number of moles of Mg(OH)2 = 8.00 g/58 g/mol = 0.138 moles
Number of moles of HNO3 = 0.205 M × 24.2 mL/1000 = 0.00496 moles
Given that;
2 moles of HNO3 reacts with 1 mole of Mg(OH)2
0.00496 moles of HNO3 reacts with 0.00496 moles × 1 mole /2 moles = 0.00248 moles of Mg(OH)2
Hence, Mg(OH)2 is the reactant in excess.
The amount of Mg(OH)2 remaining = Amount present - Amount reacted
Hence; 0.138 moles - 0.00248 moles = 0.136 moles of Mg(OH)2
Learn more: brainly.com/question/9743981