Answer:
32.6%
Explanation:
Equation of reaction
2KClO₃ (s) → 2KCl (s) + 3O₂ (g)
Molar mass of 2KClO₃ = 245.2 g/mol ( 122.6 × 2)
Molar volume of Oxygen at s.t.p = 22.4L / mol
since the gas was collected over water,
total pressure = pressure of water vapor + pressure of oxygen gas
0.976 = 0.04184211 atm + pressure of oxygen gas at 30°C
pressure of oxygen = 0.976 - 0.04184211 = 0.9341579 atm = P1
P2 = 1 atm, V1 = 789ml, V2 = unknown, T1 = 303K, T2 = 273k at s.t.p
Using ideal gas equation
=
V2 =
V2 = 664.1052 ml
245.2 yielded 67.2 molar volume of oxygen
0.66411 will yield =
= 2.4232 g
percentage of potassium chlorate in the original mixture =
= 32.6%
Explanation:
The equilibrium constant of the reaction =
Initial concentration of HI = 0.311 M
After addition 0.174 mol of HI(g)
Concentration of HI added = 
New concentration of HI = 0.311 M + 0.174 M = 0.485 M

Initial concentration:
0.311 M
At equilibrium:
(0.485 M - x)
![K_{eq}=\frac{[H_2][I_2]}{[HI]^2}](https://tex.z-dn.net/?f=K_%7Beq%7D%3D%5Cfrac%7B%5BH_2%5D%5BI_2%5D%7D%7B%5BHI%5D%5E2%7D)






Equilibrium concentrations:
![[HI]=0.485 M-x = 0.485 M - 0.01586 M= 0.46914 M](https://tex.z-dn.net/?f=%5BHI%5D%3D0.485%20M-x%20%3D%200.485%20M%20-%200.01586%20M%3D%200.46914%20M)
![[H_2]=[I_2]=4.71\times 10^{-2} M+x=4.71\times 10^{-2} M+0.01586 M](https://tex.z-dn.net/?f=%5BH_2%5D%3D%5BI_2%5D%3D4.71%5Ctimes%2010%5E%7B-2%7D%20M%2Bx%3D4.71%5Ctimes%2010%5E%7B-2%7D%20M%2B0.01586%20M)
![[H_2]=[I_2]=0.06296 M](https://tex.z-dn.net/?f=%5BH_2%5D%3D%5BI_2%5D%3D0.06296%20M)
Looks like exponential decay. Collision theory is consistent with this model because at higher reactant concentrations we expect the reactants to encounter each other more often (collide) and as the concentration decreases we expect fewer and fewer collision events so the rate of reaction becomes less and less.
Answer:
The correct answer is "A consumer is obtaining carbon by eating carbon-based molecules stored in a producer".
Explanation:
The animal is consuming the carbon present in the molecules stored in the grass. Plants process the carbon present in the soil along with other minerals. The animal, when it feeds on these plants, is consuming the carbon they obtained from the soil. Grasslands are defined largely by their use for grazing, which includes between 10 and 30 percent of soil carbon worldwide.
Have a nice day!