Answer:
Nope. should be 2NaCl + H₂ ⇒ 2Na + 2HCl
Explanation:
balance both sides of the equation.
Uranus's atmosphere is mostly composed of hydrogen and helium
Answer:
Explanation:
Hello,
In this case, for the undergoing balanced chemical reaction:
We must first identify the limiting reactant given the 225 g of SiCl4 and 101 g of Mg. Thus, we compute the available moles of SiCl4:
Next, by using the 1:2 mole ratio between SiCl4 and Mg, we compute the moles of SiCl4 consumed by 101 g of Mg:
Thus, since less moles of SiCl4 are available, we can infer it is the limiting reactant whereas the Mg is in excess. In such a way, the produced grams of Si are computed considering the 1:1 molar ratio between SiCl4 and Si:
Best regards.
Answer:
0.0099M = [F⁻]
Explanation:
<em>For BaF2, Ksp = 1.7x10⁻⁶</em>
<em />
When BaF₂ is in solution, the equilibrium between the solid and the dissociated ions occurs as follows:
BaF₂(s) ⇄ Ba²⁺(aq) + 2F⁻(aq)
Where Ksp = 1.7x10⁻⁶ is defined as:
1.7x10⁻⁶ = [Ba²⁺] [F⁻]²
<em>Where [] are equilibrium concentrations of each ion in solution.</em>
<em />
That means you will add F⁻ until its concentration exceeds:
1.7x10⁻⁶ = [0.0173] [F⁻]²
9.827x10⁻⁵ = [F⁻]²
<h3>0.0099M = [F⁻]</h3><h3 />
When more F⁻ is added, BaF₂ begins its precipitation.