Answer:
35.1 g
Explanation:
Given data:
Mass of Al(OH)₃ = 100 g
Mass of water formed = ?
Solution:
Chemical equation:
2Al(OH)₃ → Al₂O₃ + 3H₂O
Number of moles of Al(OH)₃:
Number of moles = mass/molar mass
Number of moles = 100 g/ 78 g/mol
Number of moles = 1.3 mol
now we will compare the moles of Al(OH)₃ with water.
Al(OH)₃ : H₂O
2 : 3
1.3 : 3/2×1.3 = 1.95
Mass of water produced:
Mass = number of moles ×molar mass
Mass = 1.95 mol × 18 g/mol
Mass = 35.1 g
The answer is:
A. The reaction between A and B is reactant favored
Explanation:
Because the reaction favors reactants, their concentration will be higher at equilibrium than the products.
a. The two products for the reaction are Potassium Hydroxide and hydrogen gas.
2K₍s₎ +2H₂O₍l₎⇒ 2KOH₍aq) +H₂₍g₎
b. The piece of potassium melts and darts on the surface of the water then bursts into a lilac flame. This is because the reaction is highly exothermic- the heat produced makes the potassium melt.
c. Rubidium that has an electron configuration of 2.8.18.18.1 is extremely reactive with water since it has a very large atomic radius. the big atomic radius makes the outer electron loosely attached to the nucleus and thus it is easily lost during the reaction. Reaction under class conditions may cause an explosion.
a) ionic
chlorine is present in top of group 17 and right of period 3 and
electronegativity(the tendency to gain electrons)
increases up the group and right the group.
so it has high tendency to form anion.
In the same way both Na and K are present up the group and left side and the tendency to lose electrons in both becomes high and they tend to form cation.
Answer:
Hope dat helps
Explanation:
All the data related to the potential energy diagram is shown in the attached image.
Reactants, intermediate, products, activation energy (Ea), and enthalpy change (ΔH).
Enthalpy change (ΔH) is the difference in energy between reactants and products.
ΔH = E of products - E of reactants.
Enthalpy of the reaction is defined as the difference in the potential energy of the products and the reactants. It is represented as
From the image, the points marked represents:
Point A represents the potential energy of the reactants.
Point B represents the intermediate state or transition state in a reaction.
Point C represents the potential energy of the products.
Arrow D represents the activation energy of the reaction.
Arrow E represents the enthalpy of the reaction.
Hence, arrow E represents the enthalpy of the reaction.
