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levacccp [35]
2 years ago
12

Enter the correct ground-state (or lowest energy) configuration based on the number of electrons: 1s^2 2s^2 2p^6 3s^2 3p^6 3d^10

.
Chemistry
2 answers:
Temka [501]2 years ago
5 0

Answer:

Ang hirap naman

Explanation:

joke lang jejemon,,hahaha

zloy xaker [14]2 years ago
4 0

Answer:

FIGURE 5.9 The arrow shows a second way of remembering the order in which sublevels fill. Table 5.2 shows the electron configurations of the elements with atomic numbers 1 through 18.

Element Atomic number Electron configuration

sulfur 16 1s22s22p63s23p4

chlorine 17 1s22s22p63s23p5

argon 18 1s22s22p63s23p6

Explanation:

<em>Brainlilest </em><em>me </em>

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How do instantaneous speed and average speed differ?
Wittaler [7]

Answer:

Option 3

Explanation:

Option 3: Instantaneous speed is the speed of an object at a specific time, but average speed is the total distance over the total time. This is why they are called instantaneous and average, because instantaneous is at any one instance and average is the average speed it was moving over the total time which is calculated by the total distance/total time.

Hope this helped!

5 0
3 years ago
Could you help answer these two question
Katen [24]

Answer:

number 29 is D

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I dont know how to answer 28 fully, is there a picture?

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3 years ago
Your body is made up of trillions of cells that perform all the functions you need to survive. Which other kinds of organisms ar
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8 0
2 years ago
To determine the concentration of SO4 2– ion in a sample of groundwater, 100.0 mL of the sample is titrated with 0.0250 M Ba(NO3
Brrunno [24]

Answer:

1.87x10⁻³ M SO₄²⁻

Explanation:

The reaction of SO₄²⁻ with Ba²⁺ (From Ba(NO₃)₂) is:

SO₄²⁻(aq) + Ba²⁺(aq) → BaSO₄(s)

<em>Where 1 mole of  SO₄²⁻ reacts per mole of Ba²⁺</em>

<em />

To reach the end point in this titration, we need to add the same moles of Ba²⁺ that the moles that are of SO₄²⁻.

Thus, to find molarity of SO₄²⁻ we need to find first the moles of Ba²⁺ added (That will be the same of SO₄²⁻). And as the volume of the initial sample was 100mL we can find molarity (As ratio of moles of SO₄²⁻ per liter of solution).

<em>Moles Ba²⁺:</em>

7.48mL = 7.48x10⁻³L ₓ (0.0250moles / L) = 1.87x10⁻⁴ moles of Ba²⁺ = Moles of SO₄²⁻

<em>Molarity SO₄²⁻:</em>

As there are 1.87x10⁻⁴ moles of SO₄²⁻ in 100mL = 0.1L, molarity is:

1.87x10⁻⁴ moles of SO₄²⁻ / 0.1L =

<h3> 1.87x10⁻³ M SO₄²⁻</h3>
8 0
3 years ago
Meanders are characteristics of a young river. True False
Rainbow [258]
True would be the answer
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3 years ago
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