Answer: (although the question does not sate whether if you separate them physically or through energy. so i did both)
1. can be separated (When high-energy ultraviolet rays strike ordinary oxygen molecules (O2), they split the molecule into two single oxygen atoms, known as atomic oxygen)
2. can be separated, but through electrolysis, fiscally moving a crane to generate electricity to separate the molecules
3. Most solid particles, composed of diamagnetic or weak paramagnetic materials, cannot be extracted by a conventional magnetic separator. physically cannot be separated. but through heat yes
4. but there is a catch: doing so requires energy. ... If energy from coal were applied to drive the decomposition reaction, more CO2 would be released than consumed, because no process is perfectly efficient. so it cant be separated physically
5. it can be separated but it needs energy physically cannot be separated.
Explanation:
Answer:
1) accepts a proton
Explanation:
CO₃⁻² is a base here because it is accepting a proton ( H⁺) through coordinate bonding by donating a pair of electron .
So option (1) is correct .
3. From one form to another.
Please correct me if I’m wrong. Hope this helps! :)
Answer:
If a reaction has an equilibrium constant just greater than it is
- <em>c. reversible favoring products</em>
Explanation:
An<em> equilibrium reaction</em> is one in which two reversible reactions compete.
Consider the general equilibrium aA + bB ⇄ cC + dD.
The <em>equilibrium constant</em>, Ke, for that equilibrium is given by the following equation:
![Ke=\frac{[C]^c[D]^d}{[A]^a[B]^b}](https://tex.z-dn.net/?f=Ke%3D%5Cfrac%7B%5BC%5D%5Ec%5BD%5D%5Ed%7D%7B%5BA%5D%5Ea%5BB%5D%5Eb%7D)
When the forward reaction is favored means that the products on the right side of the equilibrium are favored. In other words, the concentration of the products are larger than the concentrations of the reactants.
Then, in the Ke equation, the product of the numerator is greater than the product of the denominator, and Ke > 1.
The fact that it is an equilibrium means that the reaction is reversible.
When Ke is very large you might consider that the reverse reaction is neglectible but this is not the case. The value just greater than 1 of the equilibrium constant confirms that the reaction is reversible.
Answer:
Mass of Na₂CrO₄ = 5.75 g
Explanation:
First of all we will write the balance chemical equation.
2AgNO₃ + Na₂CrO₄ → Ag₂CrO₄ + 2NaNO₃
Now we will calculate the moles of AgNO₃.
Number of moles = mass / molar mass
Molar mass of AgNO₃ = 107.87 + 14 + 3× 16 = 169.87 g/mol
Number of moles = mass / molar mass
Number of moles = 12.1 g / 169.87 g/mol = 0.071 mol
Now we will compare the moles of AgNO₃ and Na₂CrO₄ from balance chemical equation.
AgNO₃ : Na₂CrO₄
2 : 1
0.071 : 1/2× 0.071 = 0.0355
Now we will calculate the mass of Na₂CrO₄.
Molar mass of Na₂CrO₄ = 23×2 + 52 + 16×4 = 162 g/mol
Mass of Na₂CrO₄ = number of moles × molar mass
Mass of Na₂CrO₄ = 0.0355 mol × 162 g/mol
Mass of Na₂CrO₄ = 5.75 g
