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2 years ago

List the elements Cs, Ca, Ne, Na, Ar in order of decreasing first ionization energy

1 answer:

3 0

The ionization energy increases from left to right and from bottom to top in the periodic table, like in diagonal

Ar,
Ne,
Cs,
Ca,
Na

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At 700 K, the reaction2SO2(g) + O2(g) 2SO3(g)has the equilibrium constant Kc = 4.3 x 106, and the following concentrations are p

dedylja [7]

Explanation:

The given reaction is as follows.

$2SO_{2} + O_{2}(g) \rightarrow 2SO_{3}(g)$

Value of equilibrium constant is given as $K_{c}$ = 4.3 \times 10^{6}[/tex].

Concentration of given species is $[SO_2]$ = 0.010 M; $[SO_3]$ = 10.M; $[O_2]$ = 0.010 M.

Formula for experimental value of equilibrium constant (Q) is as follows.

Q = $\frac{[SO_{3}]^{2}}{[SO_{2}]^{2}[O_{2}]}$

Putting the given concentration as follows.

Q = $\frac{[SO_{3}]^{2}}{[SO_{2}]^{2}[O_{2}]}$

Q = $\frac{(10)^{2}}{(0.010)^{2}(0.010)}$

Q = $10^{8}$

It is known that when Q > $K_{eq}$ , then reaction moves in the backward direction.

When Q < $K_{eq}$ , then reaction moves in the forward direction.

When Q = $K_{eq}$ , then reaction is at equilibrium.

As, for the given reaction Q > $K_{eq}$ then it means reaction moves in the backward direction.

Thus, we can conclude that the reaction is moving in the backward direction, that is, right to left to reach the equilibrium.

5 0

3 years ago

Type the correct answer in each box.

Arturiano [62]

Answer:

5SiO2 + 2CaC2 = 5Si + 2CaO + 4CO2

Explanation:

balancing equations is a lot of trial and error. My strategy to approaching this equation was to get the O's balanced. After trying several combonations I found that I needed 10 O's on each side of the equation for the other elements to match up. After I balanced the O's, I balanced my C's to 4 on each side. Then I balanced my Ca's to have 2 on each side. And last but not least I balanced my Si to have 5 on each side.

8 0

3 years ago

What is the percent composition of Fluorine in CF5?

posledela

The answer is 100%
let me know if you want an explanation

6 0

3 years ago

Which of the following is the least reactive nonmetal? A. I B. F C. Br D. Cl

tatyana61 [14]

the answer is A. I (iodine)

no worries

5 0

3 years ago

What two types of matter are closest in<br> density? How do you know?<br> ings.

maks197457 [2]

Answer:

Density: The molecules of a liquid are packed relatively close together. Consequently, liquids are much denser than gases. The density of a liquid is typically about the same as the density of the solid state of the substance.

In a gas, the distance between molecules, whether monatomic or polyatomic, is very large compared with the size of the molecules; thus gases have a low density and are highly compressible. In contrast, the molecules in liquids are very close together, with essentially no empty space between them

I hope it helps you

7 0

3 years ago