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vredina [299]
3 years ago
15

An element whose third shell contains two p electrons

Chemistry
2 answers:
aalyn [17]3 years ago
4 0

Answer:

Carbon

Explanation:

Data:

The element must have the configuration:

1s². 2s²2p²

In other words, the number of valence electrons should be 4 (2s²2p²). Looking at the periodic table, carbon fits the criteria.

pentagon [3]3 years ago
3 0
Maybe sodium? becasue its an element and I would like some points... sorryy:((((
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Helen [10]

Answer:

325

Explanation:

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5 0
3 years ago
Read 2 more answers
The second-order rate constants for the reaction of oxygen atoms witharomatic hydrocarbons have been measured (R. Atkinson and J
Pepsi [2]

Answer:

A = 1,13x10¹⁰

Ea = 16,7 kJ/mol

Explanation:

Using Arrhenius law:

ln k = -Ea/R × 1/T + ln(A)

You can graph ln rate constant in x vs 1/T in y to obtain slope: -Ea/R and intercept is ln(A).

Using the values you will obtain:

y = -2006,9 x +23,147

As R = 8,314472x10⁻³ kJ/molK:

-Ea/8,314472x10⁻³ kJ/molK = -2006,9 K⁻¹

<em>Ea = 16,7 kJ/mol</em>

Pre-exponential factor is:

ln A = 23,147

A = e^23,147

<em>A = 1,13x10¹⁰</em>

<em></em>

I hope it helps!

6 0
3 years ago
can anyone help me with this and if my score is perfect i will brainlist u and follow you and please the answer must be the righ
mario62 [17]

Answer:

1.CL

2.SP

3.CL

4.SL

5.SL

6.SP

7.SL

8.CL

9.SL

10.CL

Explanation:

HOPE ITS HELP

5 0
3 years ago
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