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nirvana33 [79]
3 years ago
15

List all orbitals from 1s through 5s according to increasing energy for multielectron atoms. rank orbitals from smallest to larg

est energy. helpreset 3p2p

Chemistry
1 answer:
GaryK [48]3 years ago
3 0

Answer:

1s < 2s < 2p < 3s < 3p < 4s < 3d < 4p < 5s

Explanation:

You can predict the order of orbital energies by constructing a diagram as shown below.

Follow the arrows to get the orbitals in order of increasing energy.

The order is

1s < 2s < 2p < 3s < 3p < 4s < 3d < 4p < 5s

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A galvanic cell at a temperature of is powered by the following redox reaction: 2Cr3 + 3Ca Suppose the cell is prepared with in
stira [4]

Answer:

2.13 V

Explanation:

The balanced equation of the reaction his;

2Cr^3+(aq) + 3Ca(s) -----> 2Cr(s) + 3Ca^2+(aq)

Since this is a galvanic cell then E°cell must be positive. It implies that calcium will be the anode and chromium will be the cathode since calcium is ahead of chromium in the electrochemical series.

E°anode= -2.87 V

E°cathode= -0.74 V

E°cell= E°cathode -E°anode

E°cell= -0.74 -(-2.87)

E°cell = 2.13 V

8 0
2 years ago
Why is a saturated NaCl solution an example of an equilibrium system? A. Because of the reversible nature of solidifying and mel
nataly862011 [7]

Answer:

Option B, Because of the reversible nature of crystallizing and dissolving

Explanation:

Solution containing the maximum amount of solute that can be dissolved in the given solvent at the particular temperature is called saturated solution.

Reversible reaction is the reaction which can go in reverse and forward direction both on varying reaction condition.

In the saturated NaCl solution, on lowering temperature, The the dissolved NaCl molecules may crystallize. Likewise on increasing temperature, the crystallized crystals may dissolved. As the reaction moves in both the direction, therefore its considered to be equilibrium system.

Therefore, amog given, option B is correct.

Because of the reversible nature of crystallizing and dissolving

8 0
2 years ago
Why alkali metals easly ionize
Dmitriy789 [7]
Here’s what I found:

It takes very little energy to remove that outermost electron from an alkali metal. Thus, alkali metals easily lose their outermost electron to become a +1 ion. ... In fact, as you go down the 1A column, the first ionization energies get lower and lower, making cesium the most easily ionized element on the periodic table.

So basically it’s because part of what makes alkali metals so reactive is that they have one electron in their outermost electron layer.
7 0
3 years ago
For The Reaction CH3COOH ---&gt; CH3COO- + H+, which of the following statements is true? A.) Ch3COOH is a Bronsted Lowry base.
Savatey [412]

Answer: Option (C) is the correct answer.

Explanation:

According to Arrhenius, bases are the species which when dissolved in water will give hydroxide ions, that is, OH^{-}.

For example, NaOH + H_{2}O \rightarrow Na^{+} + OH^{-}

Arrhenius acids are the species which when dissolved in water will give hydrogen ions, that is, H^{+}.

For example, CH_{3}COOH + H_{2}O \rightleftharpoons H_{3}O^{+} + CH_{3}COO^{-}

In water, when an acid loses a hydrogen ion then the specie formed is known as conjugate base.

Here, CH_{3}COO^{-} is the conjugate base of CH_{3}COOH.

Similarly, species which accept the hydrogen ion result in the formation of conjugate acid.

Hence, H_{3}O^{+} is the conjugate acid of H_{2}O.

Thus, we can conclude that CH_{3}COO^{-} is the conjugate base.

7 0
3 years ago
Read 2 more answers
In the reaction 4Al+__O2→2Al2O3, what coefficient should be placed in front of the O2 to balance the reaction?
Sedaia [141]
The coefficient should be 3. THATLL give you 6 oxygens on both sides.
6 0
2 years ago
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