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asambeis [7]
3 years ago
12

What Makes You Unique?? Just bored so yea :))) Free 15 points :)

Chemistry
2 answers:
Elis [28]3 years ago
8 0

Answer:

the answer is 14.245. im answering like this cuz admins keep deleting my posts.

Explanation:

Julli [10]3 years ago
6 0

Answer:

you said 15 its 8 bruv

Explanation:

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xxMikexx [17]

Answer:

It's either Substance 1 or Subatance 4 !

8 0
3 years ago
What is the ground-state electron configuration for the Mn4+ ion and is it paramagnetic or diamagnetic?
olchik [2.2K]

Answer:

[Ar] 4s2 3d5 paramagnetic

Explanation:

7 0
3 years ago
Of the following, which is the most concentrated solution?
jeka94
B 1.2g/mL just look at a graph and pin point those answers
8 0
3 years ago
Read 2 more answers
Which two elements have the same number of energy levels with electrons in them?(1 point)
Vladimir79 [104]

Its B) Boron and Oxygen

5 0
3 years ago
At 150°C the decomposition of acetaldehyde CH3CHO to methane is a first order reaction. If the
Crank

The decomposition time : 7.69 min ≈ 7.7 min

<h3>Further explanation</h3>

Given

rate constant : 0.029/min

a concentration of  0.050 mol L  to a concentration of 0.040 mol L

Required

the decomposition time

Solution

The reaction rate (v) shows the change in the concentration of the substance (changes in addition to concentrations for reaction products or changes in concentration reduction for reactants) per unit time

For first-order reaction :

[A]=[Ao]e^(-kt)

or

ln[A]=-kt+ln(A0)

Input the value :

ln(0.040)=-(0.029)t+ln(0.050)

-3.219 = -0.029t -2.996

-0.223 =-0.029t

t=7.69 minutes

4 0
3 years ago
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