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Firlakuza [10]
4 years ago
9

What does E+mc^2 mean and how it came to be

Chemistry
1 answer:
Shalnov [3]4 years ago
4 0
E = mc^2<span> is an equation derived by the twentieth-century physicist Albert Einstein, in which E represents units of energy, m represents units of mass, and c 2 is the speed of light squared, or multiplied by itself.</span>
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Jim thinks that he can throw a baseball six meters per second. What does the six meters refer to? (2 points)
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The answer is b. hope this helps
6 0
3 years ago
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Hydrogen sulfide decomposes according to the following reaction, for which Kc = 9.30x10⁻⁸ at 700°C:2H₂S(g) ⇄ 2H₂(g) + S₂(g) If 0
astra-53 [7]

the equilibrium concentration of H₂(g) at 700°C =  0.00193 mol/L

0.00193 mol/L

Given that:

numbers of moles of H₂S = 0.59 moles

Volume = 3.0-L

Equilibrium constant  = 9.30 × 10⁻⁸

The equation for the reaction is given as :

2H₂S    ⇄   2H₂(g)  +  S₂(g)

The initial concentration of H₂S =

The initial concentration of H₂S =

= 0.1966 mol/L

The ICE table is shown be as :

                           2H₂S                ⇄         2H₂(g)        +        S₂(g)

Initial                    0.9166                           0                           0

Change                 -2 x                               +2 x                      + x

Equilibrium          (0.9166 - 2x)                   2x                         x

     

(since 2x < 0.1966 if solved through quadratic equation)

The equilibrium concentration for H₂(g) = 2x

∴

= 0.00193 mol/L

Thus, the equilibrium concentration of H₂(g) at 700°C =  0.00193 mol/L

To know more about equilibrium concentration

brainly.com/question/13414142

#SPJ4

5 0
1 year ago
An ionic bond involves the transfer of valence electrons from a metal to a non-metal. True or False
Sergio [31]

the answer is true it goes from metal to a non metal

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What type of reaction releases energy in the form of heat and sometimes light?
jasenka [17]
What type of reaction releases energy in the form of heat and sometimes light?
Answer: Exothermic Energy
Good luck on your exam!
5 0
3 years ago
What happens to atomic radius size of a cation and why?
slamgirl [31]
A cation is a positive ion. That means it lost an electron.
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