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Alika [10]
3 years ago
13

Which of earths spheres contains most of its mass?

Chemistry
2 answers:
zysi [14]3 years ago
8 0
The geosphere is about 99.94% of Earth's mass, so C is the answer.
solong [7]3 years ago
5 0
Geosphere. hope this helps
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SOMEONE HELP PLEASE 60 POINTS!!!!!!! IM TIMED TOO SO PLS
Sergeu [11.5K]

Explanation:

ooohhhh it's free points,,,thank you mwahhh hahahahahaha jokeee

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4 0
3 years ago
State five difference between ionic compound and covalent compound​
lawyer [7]

Answer:

Compound are defined as the containing two or more different element .

(1) Ionic compound and (2) Covalent compound.

Explanation:

Covalent compound :- covalent compound are the sharing of electrons two or more atom.

Covalent compound are physical that lower points and compared to ionic .

Covalent compound that contain bond are carbon monoxide (co), and methane .

Covalent compound are share the pair of electrons.

Covalent compound are bonding a hydrogen atoms electron.

Ionic compound a large electrostatic actions between atoms.

Ionic compound are higher melting points and covalent compound.

Ionic compound are bonding a nonmetal electron.

Ionic electron can be donate and received ionic bond.

Ionic compound bonding kl.

4 0
3 years ago
Which of the following Substances would have the highest vapor pressure at 298 K?
elena-14-01-66 [18.8K]
The answer is D. hope I was right
7 0
3 years ago
An atom has 1 proton, 2 neutrons, and 1 electrons. What is the atomic number of the atom?
RideAnS [48]

Atomic number = No. of proton = 1

so, your answer is 1

8 0
3 years ago
Calculate the cell potential, the equilibrium constant, and the free energy change for
Tresset [83]

Answer:

Explanation:

Ba(s) + Mn²⁺ (aq,1M)  →      Ba²⁺ (aq,1M) + Mn(s)

Ba⁺²(aq) +2e →  Ba(s) ,  E° =  −2.90 V  

Mn⁺²(aq) +2e → Mn(s),  E⁰  =0.80 V

Anode reaction :

Ba(s)  →  Ba⁺²(aq) +2e        E° =  −2.90 V  

Cathode reaction :

Mn⁺²(aq) +2e → Mn(s)          E⁰  =0.80 V

Cell potential = Ecathode  - Eanode

Ecell  = .80 - ( - 2.90 )

Ecell = 3.7 V .

equilibrium constant ( K ) :

Ecell = .059 log K  / n

n = 2

3.7  = .059 log K  / 2

log K = 125.42

K = 2.63 x 10¹²⁵ .

Free energy change :

ΔG = - n F Ecell

= - 2 x 96500 x 3.7

= 714100 J

= 7.141 x 10⁵ J .

5 0
3 years ago
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