Answer;
Considering the types of bonds being created and severed in the transition state, the stability of this temporary structure is comparatively high.
Explanation;
- The reaction can be expressed as follows; NO(g)+F2(g)→NOF(g)+F(g)
- All chemical reactions, including exothermic ones, require activation energy to initiate. The activation energy is the least amount of energy needed for the reactants to come together, overcome opposing forces, and begin breaking bonds.
- When molecules encounter each other, their kinetic energy may be sufficient to stretch, bend, and eventually break bonds, resulting in chemical reactions.
Solution:
The molecular formula is PbSO₄, indicating lead sulfate
Option c.
Explanation:
The percentage makeup shows that in 100 g of this compound, there are:
68.3 g of Pb, 10.6 g of S, and (100 - 68.3 - 10.6) = 21.1 g of O
To find the moles of each element, we divide by their molar masses:
68.3 g Pb / 207.2 g/mol = 0.329 moles Pb
10.6 g S / 32.06 g/mol = 0.331 moles S
21.1 g O / 16 g/mol = 1.32 moles O
Next, we find the mole ratio by dividing each by the smallest number of moles:
0.329 / 0.329 = 1 Pb
0.331 / 0.329 = 1 S
1.32 / 0.329 = 4 O
Thus, the molecular formula is PbSO₄, representing lead sulfate.
CxHy + (x+0.25)O₂ → xCO₂ + 0.5yH₂O
m(CO₂)/{xM(CO₂)}=m(H₂O)/{0.5yM(H₂O)}
0.2845/{44.01x}=0.1451/{9.01y}
x/y=0.4=2:5
The empirical formula is C₂H₅.
The coefficients in a balanced equation indicate the relationship between the moles of reactants and products. In this case, four moles of hydrochloric acid react with one mole of oxygen to yield two moles of chlorine and water. Therefore, the mole ratio of hydrochloric acid to chlorine is 2:1. To calculate the number of moles, you divide the mass by the mass of a single mole. Cl2 = 2 * 35.45 = 70.9 grams. Thus, Number of moles = 335 ÷ 70.9, which is roughly 4.72 moles. The amount of hydrochloric acid would then be double that figure.
B) the number of protons increases, and the number of electron shells increases
