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jolli1 [7]
3 years ago
7

Name three elements that have been added to the periodic table since mendeleev's time

Chemistry
1 answer:
dolphi86 [110]3 years ago
7 0
Lanthamides, actinides, noble gases
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Convert the volume to its equivalent in milliliters. 14 μL= ? mL
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0.014 is the answer
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3 years ago
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A mixture of 0.600 mol of bromine and 1.600 mol of iodine is placed into a rigid 1.000-L container at 350°C.
kaheart [24]

The equilibrium constant of the reaction is 282. Option D

<h3>What is equilibrium constant?</h3>

The term equilibrium constant refers to the number that often depict how much the process is able to turn the reactants in to products. In other words, if the reactants are readily turned into products, then it follows that the equilibrium constant will be large and positive.

Concentration of bromine = 0.600 mol /1.000-L = 0.600 M

Concentration of iodine = 1.600 mol/1.000-L =  1.600M

In this case, we must set up the ICE table as shown;

              Br2(g) + I2(g) ↔ 2IBr(g)

I          0.6            1.6           0

C      -x                -x             +2x

E    0.6 - x         1.6 - x       1.190

If 2x = 1.190

x = 1.190/2

x = 0.595

The concentrations at equilibrium are;

[Br2] = 0.6 -  0.595 = 0.005

[I2] =   1.6 - 0.595 = 1.005

Hence;

Kc = [IBr]^2/[Br2] [I2]

Kc = ( 1.190)^2/(0.005) (1.005)

Kc = 282

Learn more about equilibrium constant:brainly.com/question/15118952

#SPJ1

4 0
2 years ago
Any help with atomic radius, ionization &amp; electronegativity? See picture please! I dont really understand any of the three.​
enyata [817]
18)
a. Ra
d. Ag
19)
a. C
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a. S
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Sorry wasn’t sure about some of them in #18
Hope the notes are helpful.

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Use the drop-down menus to complete the statements
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Answer:

First one: group

Second one: period

Third one: number of valence electrons

Last one: increases

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Which model best represents an element?
Kobotan [32]
Answer:

c. gold marbles because they have one type of atom


an element is a substance that is entirely made from one type of atom.
7 0
3 years ago
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