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Sveta_85 [38]
3 years ago
10

HELP!!

Chemistry
1 answer:
alexandr402 [8]3 years ago
4 0

Answer:

21: True

22: False

23: True

24: False

25: False

26: True

27: True

28: False

30: True

Explanation: Hope this is helpful :)

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3.01 Quiz: Atomic Number and the Periodic Law
Delicious77 [7]

Answer:

The answer is Dissemination of components controlled by electron design.  

Explanation:

the Aufbau rule, the Pauli rejection guideline, and Hund's rule,tell you how to discover the electron designs of particles. As indicated by the aufbau standard, electrons possess the orbitals of most reduced vitality first, Pauli-prohibition rule, and Hund's Rule. The electronic setup of cations is doled out by evacuating electrons first in the peripheral p orbital, trailed by the s orbital lastly the d orbitals.

7 0
4 years ago
HELPP ME ASAP<br> What is the percent composition of Nitrogen in dinitrogen trioxide?
Arte-miy333 [17]
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7 0
3 years ago
Please help my teacher has like given up
NikAS [45]

Answer:

24.47 L

Explanation:

Using the general gas law equation:

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = 0.0821 Latm/molK

T = temperature (K)

According to the provided information in this question,

P = 1.0 atm

V = ?

n = 1 mol

T = 25°C = 25 + 273 = 298K

Using PV = nRT

V = nRT ÷ P

V = 1 × 0.0821 × 298 ÷ 1

V = 24.465 ÷ 1

V = 24.465

V = 24.47 L

5 0
3 years ago
Help pleaaasee??????????? can u tell me whether it's physical or chemical change
Karo-lina-s [1.5K]
2) chemical
3) chemical
4) physical
5)chemical
6)chemical
7)physical
8)physical
9)physical / chemical
    100% sure
5 0
3 years ago
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