The answer is B a yard hope this helps
Answer:
0.200g de gas son obtenidos
Explanation:
La reacción de ácido clorhídrico, HCl, con Zn es:
2HCl(aq) + Zn(s) → ZnCl₂(s) + H₂(g)
<em>Donde 2 moles de ácido reaccionan con 1 mol de Zn para producir una mol de cloruro de cinc y una mol de hidrógeno (gas)</em>
Asumiendo que el ácido está en exceso, las moles de 6.5g de Zn (Masa molar: 65.38g/mol) son:
6.5g × (1mol / 65.38g) = <em>0.0994 moles de Zn</em>
Como 1 mol de Zn produce 1 mol de hidrógeno, las moles de hidrógeno son 0.0994 moles de H₂. En gramos (Masa molar H₂ = 2.01g/mol):
0.0994 moles H₂× (2.01g / mol) = <em>0.200g de gas son obtenidos</em>
Balanced chemical reaction: C₃H₈(g) + 5O₂(g) → 3CO₂(g) + 4H₂O(g).
<span>There are same number
of atoms of on both side of balanced chemical reaction: ten oxygen atoms, three carbon atoms and eight hydrogen atoms.
</span>Carbon is oxidized and oxygen is reduced in this balanced chemical reaction of combustion of propane.
Rare earth metals are a group of 17 elements - lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, yttrium - that appear in low concentrations in the ground
Answer:
A
Explanation:
because on the first alphabet they've been specific of the weather partaking in the area