Answer:
ide
in binary ionic compounds, you change the suffix of the nonmetal to ide. example: sodium chlorIDE
Answer:
6
Explanation:
You have the unbalanced chemical reaction:
BF3 + Li2SO3 ⇒ B2(SO3)3 + LiF
Knowing that there are 2 atoms of boron in the products, we need to adjust that element putting 2 as coefficient of BF3.
2BF3 + Li2SO3 ⇒ B2(SO3)3 + LiF
Then, we need to balance fluor. There are 6 atoms of F in the reactants, for that reason, we write 6 in the lithium fluoride.
2BF3 + Li2SO3 ⇒ B2(SO3)3 + 6LiF
Finally, sulfur and oxygen have to be adjusted. 3 before lithium sulfite is enough to balance the chemical reaction.
2BF3 + 3Li2SO3 ⇒ B2(SO3)3 + 6LiF
Answer:
1.84 × 10⁻³
Explanation:
Step 1: Write the balanced equation
2 NOBr(g) ⇄ 2 NO(g) + Br₂(g)
Step 2: Calculate the initial concentration of NOBr
0.143 moles of NOBr(g) are introduced into a 1.00 liter container. The molarity is:
M = 0.143 mol / 1.00 L = 0.143 M
Step 3: Make an ICE chart
2 NOBr(g) ⇄ 2 NO(g) + Br₂(g)
I 0.143 0 0
C -2x +2x +x
E 0.143-2x 2x x
Step 4: Find the value of x
The equilibrium concentration of NOBr(g) was 0.108 M. Then,
0.143-2x = 0.108
x = 0.0175
Step 5: Calculate the concentrations at equilibrium
[NOBr] = 0.108 M
[NO] = 2x = 0.0350 M
[Br₂] = x = 0.0175 M
Step 6: Calculate the equilibrium constant (Kc)
Kc = [0.0350]² × [0.0175] / [0.108]²
Kc = 1.84 × 10⁻³
Your answer should be heat energy!
