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a_sh-v [17]
3 years ago
10

HELPPPPPPPPPP/AYUDAAAAAAAA

Chemistry
1 answer:
Anna [14]3 years ago
3 0

Answer:

fghjkl

Explanation:

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C. Ca and Br because they're metals and nonmetals
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If the reduction reaction has a reduction potential of 0.1 V, and the oxidation reaction has a reduction potential of -0.4V, and
aleksley [76]

Answer : The value of ΔG expressed in terms of F is, -1 F

Explanation :

First we have to calculate the standard electrode potential of the cell.

E^o=E^o_{cathode}-E^o_{anode}

or,

E^o=E^o_{reduction}-E^o_{oxidation}

E^o=(0.1V)-(-0.4V)=+0.5V

Now we have to calculate the standard cell potential.

Formula used :

\Delta G^o=-nFE^o

where,

\Delta G^o = Gibbs free energy = ?

n = number of electrons = 2

F = Faraday constant

E^o = standard e.m.f of cell = +0.5 V

Now put all the given values in this formula, we get the Gibbs free energy.

\Delta G^o=-(2\times F\times 0.5)

\Delta G^o=-1F

Therefore, the value of ΔG expressed in terms of F is, -1 F

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3 years ago
Simple machines make work easier. Most simple machines reduce the amount of effort force needed to move an object. This cart has
tino4ka555 [31]
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Can you Please answer this question?
olga2289 [7]

Answer:

first option is not true

Explanation:

1 mole = 6.02 × 10²³ particles

C3H8 has 1 mole, so has 6.02 × 10²³ particles

5O2 has 5 moles so 5 × 6.02 × 10²³ = 3.01 × 10²⁴ particles

3CO2 has 3 moles so 3 × 6.02 × 10²³ = 1.806 × 10²⁴ particles

4H2O has 4 moles so 4 × 6.02 × 10²³ = 2.408 × 10²⁴ particles

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2 years ago
What atoms are present In the molecule KNO3 and how many are there of each ?
nadya68 [22]

Answer:

one potassium, one nitrogen and three oxygen

Explanation:

potassium is K, nitrogen is N and oxygen is O

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