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Scilla [17]
4 years ago
8

Which element is less electronegative than barium

Chemistry
2 answers:
mario62 [17]4 years ago
8 0

<u>Francium</u><u> </u><u>is</u><u> </u><u>less</u><u> </u><u>e</u><u>l</u><u>e</u><u>ctronegative</u><u> </u><u>than</u><u> </u><u>barium</u>

AysviL [449]4 years ago
8 0

Answer:

Cs, Rb, K

Explanation:

Cs = 0.7

Rb,K = 0.8

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Chemical formula of tetraphosphurus octasulfide
Firlakuza [10]

Answer:

Explanation: Does any of this look right? To be honest I just looked it up.

6 0
4 years ago
An exothermic reaction occurs spontaneously ,why?​
Delvig [45]

Answer:

See below  

Step-by-step explanation:

An exothermic reaction tends to occur spontaneously because the products are more stable than the reactants.

Nature tries to get to the lowest energy state.

4 0
3 years ago
Write a full set of quantum numbers for the following:
Troyanec [42]

Explanation:

It is known that the maximum value of ml is equal to the vale of l. But the minimum value of n is as follows.

                    n = l + 1

where,     n = principle quantum number  

                l = azimuthal quantum number

Values of n can be 1, 2, 3, 4 and so on. Whereas the values of l is 0 for s, 1 for p, 2 for d, 3 for f, and so on.

Also, "m" is known as magnetic quantum number whose values can be equal to -l and +l.

  • Electronic configuration of Li is 1s^{2}2s^{1}. So here, n = 2, l = 0, m = 0 and s = ± \frac{1}{2}.
  • Electronic configuration of Br^{-} is [Ar]3d^{10}4s^{2}4p^{6}&#10;. So here, n = 4, l = 1, m = -1, 0, +1, and s = ± \frac{1}{2}.
  • Electronic configuration of Cs^{+} is [Kr]4d^{10}5s^{2}5p^{6}. So here, n = 5, l = 1, m =  -1, 0, +1, and s = ± \frac{1}{2}.
  • Electronic configuration of B is 1s^{2}2s^{2}2p^{1}. So here, n = 2, l = 1, m = -1, 0, +1, and s = ± \frac{1}{2}.
5 0
3 years ago
If a solution containing A+ ions and a solution containing B- ions have just been mixed and [A+][B-] is greater than Ksp of AB,
frozen [14]

Answer:

Explanation:

In the solution of AB , they are split  to give ions as follows

AB ⇄ A⁺ + B⁻

Product of concentration of A⁺ and B⁻ in saturated solution of AB is constant .

This is called Ksp

Ksp = [A⁺] [ B⁻]

If product of concentration of A⁺  and B⁻ exceeds Ksp , the equilibrium shifts to the left side and excess ions come out of solution in the form of precipitate. So second option is the answer.

4 0
3 years ago
What is the work done when a force of 5 N is applied to a ball and it moves 8000 cm?
kolezko [41]

Answer:

Explanation:Given;

applied force, F = 8000 N

time of force application, t = 15 s

Work done is given as the product of force and displacement. Since the car is unable to move, then the displacement is zero and the work done is zero.

Work done = Force x displacement

Work done = 8000 N x 0

Work done = 0

Therefore, the work done is zero.

3 0
3 years ago
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