Answer: The amount of water produced is 9.3 grams
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
mass of reactants = mass of methane + mass of oxygen = 22.5 g + 35.7 g = 58.2 g
mass of products = mass of carbon dioxide + mass of water = 48.9 g + mass of water
48.9 g + mass of water = 58.2 g
mass of water = 9.3 g
Answer:
False
Explanation:
Boron is an exception to the octet rule because it possesses less than eight electrons. Boron has five electrons with three of them being valence electrons and therefore has an incomplete octet. It readily forms compounds in which it has six valence electrons, rather than the usual eight.
Hope that helps.
The equilibrium constant K₁ = Equilbrium constant K₂.
The equilibrium constant, K, of a reaction, is defined as:
"The ratio between concentration of products powered to their reaction quotient and concentration of reactants powered to thier reaction quotient".
For the reaction:
aA + bB ⇄ cC + dD
The equilibrium constant, K, is:
![K = \frac{[C]^c[D]^d}{[A]^a[B]^b}](https://tex.z-dn.net/?f=K%20%3D%20%5Cfrac%7B%5BC%5D%5Ec%5BD%5D%5Ed%7D%7B%5BA%5D%5Ea%5BB%5D%5Eb%7D)
Now, assuming the reaction of the problem is 1:1:
A + B ⇄ C + D
![K = \frac{[C][D]}{[A][B]}](https://tex.z-dn.net/?f=K%20%3D%20%5Cfrac%7B%5BC%5D%5BD%5D%7D%7B%5BA%5D%5BB%5D%7D)
The concentrations of the reactants are directly proportional to the volume added. Thus, we can assume that concentration = Volume. Replacing for K₁ and K₂:
![K_1 = \frac{[C][D]}{[10mL][10mL]} = K_1 = \frac{[C][D]}{100mL^2}](https://tex.z-dn.net/?f=K_1%20%3D%20%5Cfrac%7B%5BC%5D%5BD%5D%7D%7B%5B10mL%5D%5B10mL%5D%7D%20%3D%20K_1%20%3D%20%5Cfrac%7B%5BC%5D%5BD%5D%7D%7B100mL%5E2%7D)
In the same way:
![K_2 = \frac{[C][D]}{[1mL][100mL]} = K_2 = \frac{[C][D]}{100mL^2}](https://tex.z-dn.net/?f=K_2%20%3D%20%5Cfrac%7B%5BC%5D%5BD%5D%7D%7B%5B1mL%5D%5B100mL%5D%7D%20%3D%20K_2%20%3D%20%5Cfrac%7B%5BC%5D%5BD%5D%7D%7B100mL%5E2%7D)
Thus, we can say:
<h3>K₁ = K₂</h3><h3 />
Learn more about chemical equilibrium in:
brainly.com/question/4289021?referrer=searchResults
Answer:
Li
Explanation:
- In this case, "least exothermic" means that the correct answer is the least reactive of the alkali metals.
- The lower the ionization energy is, the higher the reactivity of the alkali metal is.
With the above information in mind, and remembering that ionization energy tends to decrease as we go down the group in the periodic table, the correct answer is Li, as it has the highest ionization energy among the alkali metals.
