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egoroff_w [7]
2 years ago
9

What make up molecules

Chemistry
2 answers:
AfilCa [17]2 years ago
7 0

Answer:

atom

Explanation:

because the definition of molecule is the group of an atom is called molecule

enyata [817]2 years ago
5 0

Answer:

Molecules are made up of One Or More atoms.If they contain More than One atom,the atom can be the Same Or different.

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A 2.0 L party balloon at 98 kPa is taken to the top of a mountain where the pressure is 75
PtichkaEL [24]

Answer:

2.61 L

Explanation:

p1v1 = p2v2

p1v1 / p2 = v2

98 * 2 / 75 = v2 = 2.61 L

7 0
3 years ago
What is the empirical formula of a compound that contains only iron and oxygen and is 22.27% oxygen?
8090 [49]

Answer:

A) FeO

Explanation:

Options:

A) FeO

B) FeO2

C) Fe2O

D) Fe7O2

<u>The correct answer is A) FeO.</u>

(Hope this helps can I pls have brainlist (crown)☺️)

6 0
3 years ago
Calculate the equilibrium constant at 25 ∘C for the reaction Fe(s)+2Ag+(aq)→Fe2+(aq)+2Ag(s)
Murrr4er [49]

Answer:

1.7 × 10 ^42

Explanation:

Using Nernst equation

E°cell = RT/nF Inq

at equilibrium

Q=K

E°cell  = 0.0257 /n Ink= 0.0592/n log K

Fe2+(aq)+2e−→Fe(s)     E∘= −0.45 V

Ag+aq)+e−→Ag(s)         E∘= 0.80 V

Fe(s)+2Ag+(aq)→Fe2+(aq)+2Ag(s)

balance the reaction

Fe → Fe²⁺ + 2e⁻  reversing for oxidation E° = 0.45 v

2 Ag⁺ +2e⁻ → 2Ag

n = 2 moles  and K = equilibrium constant

E° cell = 0.80 + 0.45 = 1.25 V

E° cell = (0.0592 / n) log K  

substitute the value into the equations and solve for K

(1.25 × 2) / 0.0592  = log K

42.23 = log K

k = 10^ 42.23

K = 1.7 × 10 ^42

8 0
3 years ago
7. With solutions of strong acids and strong bases, the word strong refers to
Mumz [18]

Answer:

C. Degree of ionization

Explanation:

The strength of an acid or a base is determined by how many H+/H3O+ or OH- ions are dissociated in solution. Therefore, it's describing the degree of ionization.

Example: HCl is a strong acid because in water it will pretty much 100% dissociate into H+ and Cl- ions.

4 0
3 years ago
The device shown in the picture is used by electric utility power stations to produce electrical energy from _____ energy.A. Sol
tamaranim1 [39]

Answer:

where is the picture? I can't see anything

4 0
4 years ago
Read 2 more answers
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